Tropical Health Matters

Essential Medicines, Commodities and Supplies Needed for Community Level Primary Health Care Interventions is our 2-credit online course offered from 5-9 June 2023 as part of the Global Health Systems Summer Institute. Please check the syllabus and share with colleagues.

Course Description” Essential commodities are among the 8 basic primary health care services and the 6 health systems building blocks as defined by the World Health Organization

Primary health care programs in low and middle-income countries require essential health commodities be made available at the community level. Logistic systems need to be developed to ensure that commodities are adequately estimated and delivered. In addition, systems for safely maintaining and monitoring stocks are needed at the community level.

The Summer Institute offers a variety of short-term courses in a variety of global health areas between 5-30 June 2023. The Global Health Systems Summer Institute provides early- and mid-career public health professionals with cutting-edge skills in a variety of global health topics. The Institute is also a great opportunity for part-time MPH and other Hopkins students and fellows to learn a valuable set of skills in an in-demand and rapidly growing field of public health. Below are issues covered in the Essential Medicines course.

• Overview of Essential Medicines for Primary Health Care
• Essential Medicines for Primary Health Care
• Basic Primary Health Care Procurement and Logistics
• Financing for Essential Medicines
• Implementation of Essential Medicines Programs in Primary Health Care
• Preventative Chemotherapy for Neglected Tropical Diseases
• Ensuring Essential Pharmaceuticals Go “Beyond the End of the Road”
• Supply Chains
• The Role of Indigenous Medicine
• Supply Chain Management for CDI: The Malaria Example
• Logistics Management Information System in Community Based PHC
• Community Mass Drug Distribution
• The CDI Process: Expanding Beyond Ivermectin
• Supply Chain Management in Ethiopia
• Community Supply Chain Challenges in Nigeria

Lisa Marie Clark has contributed this posting to the Blog site for the JHU site for the course Social and Behavioral Foundations of Primary Health Care.

Cervical cancer is among the leading causes of death for Kenyan women. Every day, 9 women die from cervical cancer alone in Kenya. HPV vaccination reduces the risk dramatically, particularly for HPV types 16 and 18, which may be responsible for up to 70% of cervical cancers.

Optimal vaccination is in early adolescence starting at age 10, before sexual activity begins. In 2020, uptake of the HPV vaccine in Kenya was low, with only 33% of the target population receiving the first dose and only 16% percent receiving a second dose.  Low uptake may be due to a variety of factors including misinformation, lack of access, and low supply of vaccines.

In 2019, the Kenyan Ministry of Health began including the HPV vaccine in the routine vaccination schedule. The vaccine, with support from GAVI, the vaccine alliance, is offered free of charge. However, the Catholic Church and medical professional groups influenced by religious ideology have been a major opponent to vaccine uptake. The Kenya Catholic Doctors’ Association has been vocal about urging parents to promote abstinence over vaccination, equating HPV vaccination with permission to engage in sexual activities. See vaccination from Republic of Kenya’s Ministry of Health in photo.

In the face of such obstacles to vaccine uptake, more funding is needed to strengthen Kenya’s vaccination campaign, with a focus on building trust and strengthening partnerships with faith leaders to improve vaccine uptake. With more funding from GAVI and improved community engagement vaccination rates would improve, HPV infection rates would decrease, and lives would be saved as a result.

In their 2021 presentation at the American Society of Tropical Medicine and Hygiene, “Hands-only CPR Training Program of Secondary School Students in Ibadan, Nigeria”, Olufunso Odunukan and colleagues of the Revolving Heart Foundation mentioned that plans were underway to expand the training. Below, they share their recent public training in Lagos, Nigeria.

Freedom Park Lagos played host to the Revolving Hearts Foundation (RHF) – a non-governmental organisation which advocates Cardiopulmonary Resuscitation (CPR) trainings and more of the presence/ use of Automated External Defibrillator (AED) in public places in Nigeria (and by extension Africa). The foundation represented by its visionary Dr. Olufunso Odunukan, an interventional cardiologist based in the United States, took a wide cadre of staff – from management to the most junior level, and vendor representatives through a detailed and practical session of administering CPR in a bid to save more lives and reduce loss due to not-quick-enough basic interventions in the face of a cardiac arrest or someone passing out due to a heart attack.

The NGO also presented an AED to the management of Freedom Park and in the same training showed how to set up the device following previously programmed instructions on the gadget. After that, with the use of mannequins and simulated AED materials, the RHF representative Dr. Odunukan took the participants through a very hands-on and practical experience of deploying CPR in a model situation. There was a video presentation that detailed what to do in the event a person suffers a cardiac arrest in a public place, at home, on the sidewalk, on stage or similar places.

The participants who included a wide array – cleaners, vendor workers, senior staff and middle management all gave good feedback as to the extent and impact that the training would have, even beyond the four walls of the Park. They also participated in a skit of a proper situation where they might need to take charge or be part of helping in an emergency situation, especially with the benefit of the lessons they had picked up in the training.

Dr. Odunukan equally advocated that this shouldn’t be a one-off session as the training could be replicated from time to time, so that everyone is prepared and savvy in the proper manner to be able to intervene and save lives, at least as a first aid in such situations, until professional medical assistance arrives. After the latter, on behalf of RHF, he presented the AED to the management of Freedom Park represented by the C.O.O.  Ms. Iyabo Aboaba who gladly accepted the device and reiterated the necessity of such gesture with the pledge to put it to good use, in line with the vision of the NGO to save more lives.

The training which lasted about 1hour 30 minutes ended with FAQs and an interactive and enlightening session based on the model skit and how to replicate an efficient process in the event of a real-life situation.

The TiPToP malaria in pregnancy project of Jhpiego and Unitaid has been adjusting to the COVID-19 pandemic. Their abstract below is being presented at the 2021 American Society of Tropical Medicine and Hygiene Annual Meeting and explains the use of bulk SMS to support health worker knowledge retention on antenatal care and the use of intermittent preventive treatment of malaria in pregnancy during COVID-19 in Bosso local government area of Niger State, Nigeria. See Author List below.

In light of COVID-19 travel restrictions, bulk SMS were used to support knowledge retention of health workers following an in-person training held before the pandemic. In December 2019, 72 facility health workers and 260 community health workers (CHWs) in Bosso local government area of Niger State, Nigeria participated in a 12-day training about benefits of early antenatal care (ANC) attendance, CHW referrals to ANC, and use of intermittent preventive treatment in pregnancy (IPTp) with sulphadoxine-pyrimethamine to prevent malaria.

In-person supervision visits were conducted 3 months following training, although three months later in-person supervision was no longer possible due to COVID-19 related travel restrictions. Post-training support transitioned to use of bulk SMS which were sent twice a week to each cadre for two 3-month rounds of messaging.

Knowledge tests comprised of 10 multiple choice questions linked to key ANC and IPTp guidelines were administered at 5 time points: 1) baseline; 2) post-training; 3) at in-person supervision visit 3 months after training; 4) after first round of bulk SMS (6 months post-training); and 5) after second round of bulk SMS (9 months post-training).

Average test scores for each cadre were calculated at each time point and T-tests were used to assess differences in scores. The results show that facility health workers scored an average of 53% on the pre-test followed by scores of 76%, 74%, 86%, and ending at 80% 9 months following training. CHWs started with an average score of 49% which increased to 67% post-training; subsequent average scores were 83%, 74%, and 94%.

Results were compelling with facility health worker knowledge improving from 76% immediately post-training to 80% 9 months later (p-value<0.05) and for CHWs the improvement was from 67% to 94% (p-value<0.05). These findings suggest that use of SMS can support knowledge retention of key ANC and IPTp guidelines following an in-person training. Program managers, trainers and supervisors may consider using this approach to support health workers where resources and/or movement are restricted.

AUTHOR INFORMATION:

Charity Anoke 1, Orji Bright 1, Joseph Enne 1, Bartholomew Odio 1, Christina Maly 2, Amina Zimro 3, Ibrahim Idris 3, Elizabeth Njoku 1, Oniyire Adetiloye 1, Emmanuel Dipo Otolorin 1, Elaine Roman 2  — 1Jhpiego, Abuja, Nigeria, 2Jhpiego, Baltimore, MD, United States, 3Niger State Ministry of Health, Minna, Nigeria

Kenya Division of National Malaria Program (DNMP) with support from PMI Impact Malaria (IM) and in collaboration with other stakeholders reviewed/developed/updated nine key program documents. Agustine Ngindu and the Impact Malaria/PMI team stress the importance of keeping key malaria technical guidance and tools up-to-date.

Guidelines for the Diagnosis, Treatment, and Prevention of Malaria in Kenya was revised to indicate the start of IPTp at 13 weeks from the prior recommendation of 16 weeks of gestation and updated the IPTp schedule in line with WHO guidance. The program also updated dosing charts for artemether lumefantrine, dihydroartemisinin-piperaquine, and injectable artesunate to include both weight and age range particulars. This update will enhance adherence to treatment guidelines among healthcare workers

The Kenya Quality Assurance Guidelines for Parasitological Diagnosis of Malaria was in draft form for nearly 10 years. Revisions were motivated by the lack of a functional quality assurance (QA)/quality control (QC) system for malaria diagnosis. Sections were added to guide implementation of internal quality control and external quality assurance programs. Updates also provided guidance on surveys to determine the extent of gene deletion and its effect on routine RDT-based malaria diagnosis.

Implementation Framework for Malaria Rapid Diagnostic Tests was developed to facilitate rollout of malaria diagnostics QA/QC in line with Kenya Malaria Strategy (KMS) of 2019-2023. As p[art of this effort, the M&E framework was expanded to include the performance matrix. A costed implementation matrix to provide guidance was developed on costing of activities in line with KMS 2019-2023.

Biosafety Guidelines for Malaria Rapid Diagnostic Testing at Community Level was highlighted in new guidelines developed to address emerging QA and biosafety concerns at community level. This was a response to requirements by the Kenya Medical Laboratory Technicians and Technologists Board to allow for a new waiver for community health volunteers (CHVs) to conduct testing using mRDTs.

The Guidelines on Community Case Management of malaria and its implementation plan were strengthened as was the Implementation framework for Rapid Diagnostic Testing. Updated job aids included dosing schedules for artemether lumefantrine (AL) and injectable artesunate for use at service delivery points by Health Care Workers in line with the revised guidelines.

Hopefully all national malaria programs will take the Kenya experience as an example of the need to update regularly all the tools needed for front line staff to achieve malaria elimination.

In 2001 the first Africa Malaria Day (AMD) was observed. The opportunity to mark progress and exhort increased efforts for the continent continued through 2007. Then in 2008, the concept of World Malaria Day (WMD) took over, though it could not be denied that the bulk of malaria morbidity, mortality and intervention still was focused on African countries. Other countries have made progress such as the recent certification of malaria elimination in Argentina and El Salvador, but twenty years after the first AMD/WMD, Africa is still leading the way for creative, sustained intervention against the disease, despite threats to resources from economic downturns and new pandemic diseases.

Below we go straight to Africa to share activities and observances of WMD 2021 from Jhpiego’s African Malaria Technical Officers. After reading through, please watch “Jhpiego Leaves No One Behind | World Malaria Day, 2021″ on YouTube.

“Saramed” from Guinea reports that Guinea, like other countries in the world, celebrates World Malaria Day under the theme: ” Zero Malaria, Draw a Line on Malaria “. We are currently conducting the following activities:

• Lectures and debates on malaria in medical faculties and health schools;
• Animation of debate programs on malaria in public and private radios and televisions of the country,
• Advocacy and sensitization of religious and other influential people
• Carrying out a package of activities (administration of IPT to pregnant women who have missed their ANC appointment, community distribution of LLINs, screening and treatment of confirmed cases, awareness raising on malaria) in high incidence localities.

These activities is in line with the WHO approach of “high burden, high impact”.

Noella Umulisa reports that the WMD celebration took place in Eastern Province, in Bugesera district in the Mareba sector. Due to COVID-19 pandemic ,only 100 persons were invited to the event.This year’s the national theme is “Zero Malaria starts with me”.

Key activities during the event included …

• Visit of breeding sites under sentinel surveillance
• Visit of indoor residual spraying (IRS) sites
• Launching of the Awareness of the population using drones on the ongoing IRS campaign in this time of COVID-19
• Song by CHWs
• Certificate to Integrated Vector Management (IVM) Training of Trainers who will train others up to village level
• Speech of the Director General ,the guest of honor.

From Burkina Faso, Yousseff Sawadogo and Moumouni Bonkoungou shared photos of the celebration that featured a giant Insecticide-Treated  Net, a speech by the US Ambassador, a malaria song composed by a nurse, an official speech by the President of the National Assembly, and national recognition given to one of the current Jhpiego staff members, Thiery Ouedraogo, who at one time also served as director of the national malaria control program. He was decorated by the country’s authorities as a knight of the order of merit.

Bright Orgi from Jhpiego’s TiPToP malaria in pregnancy project in Nigeria ?? shared photos from a series of compound meetings in the community to mark WMD 2021. The meetings focused on malaria prevention and treatment. Provided opportunities to rural communities to ask questions on malaria issues. Here we can see that observance of WMD must be taken to the people who actually suffer from malaria and need to be actively involved in its solution. Deo Cibinda from the Democratic Republic of the Congo share photos of a national celebration, seen to the left.

Finally, As Kristen Vibbert noted, “These are such amazing World Malaria Day stories. I’m so heartened to see all of these great country efforts to remind everyone of how the fight against malaria must continue despite the Covid-19 pandemic.”  Charles Wanga tweeted, “We know how to defeat #malaria. But that’s not enough. We must do more to save pregnant women and children from the deadly scourge. This #WorldMalariaDay and everyday, because@Jhpiego leaves no one behind in our fight to #EndMalaria for good in Africa, and everywhere”

Cristina Enguita-Fernàndez and colleagues share findings on from a qualitative study on the acceptability of a community-based approach to IPTp delivery in 4 sub-Saharan countries in the UNITAID TiPTop project. Their poster is available at the vitrual 69^th Annual Meeting of American Society of Tropical Medicine and Hygiene.

Increasing uptake of intermittent preventive treatment of malaria in pregnancy with sulfadoxine-pyrimethamine (IPTp-SP) is key to improving maternal health indicators in malaria endemic countries, yet current coverage rates remain low. This qualitative study is part of a project evaluating the acceptability of a community-based approach to the delivery of IPTp (C-IPTp) through community health workers (CHWs) in 4 countries: the Democratic Republic of Congo (DRC), Madagascar, Mozambique and Nigeria.

Between March 2018 and February 2020 a total of 435 in-depth interviews and 181 focus group discussions were carried out in the four country sites with pregnant women, relatives, women of reproductive age, community leaders, CHWs, and health providers. These were combined with direct observations of both community and facility based IPTp delivery.

Grounded theory guided the study design and data collection, and data were analysed following a combination of content and thematic analysis to identify barriers to IPTp uptake. Although the novel C-IPTp intervention overcomes some access barriers (such as distance from health care providers, and travel costs), the study identified important barriers, some of which cut across delivery mechanisms and others that are specific to the C-IPTp approach.

Cross-cutting barriers consisted of perceived attributes of SP that explain treatment refusal. These consisted of sensorial characteristics, including the drug’s perceived foul smell, taste and large size; experiences with adverse drug effects, such as nausea and weakness; fears of adverse pregnancy outcomes, such as miscarriages or oversized babies leading to C-sections.

Attributes originated either in individual experiences of SP intake or were socially transmitted. Barriers specific to C-IPTp were centered around concerns over trust in CHWs as adequate providers of maternal healthcare and their competence in delivering IPTp. Despite sensitization activities, misinformation could still be determining these barriers. Ensuring an improved awareness of SP effects and its use, as well as a better understanding of the intervention should lead to enhanced C-IPTp adherence

Authors and Affiliations

Cristina Enguita-Fernàndez¹, Yara Alonso¹, Wade Lusengi², Alain Mayembe², Aimée M. Rasoamananjaranahary³, Estêvão Mucavele⁴, Ogonna Nwankwo⁵, Elaine Roman⁶, Franco Pagnoni¹, Clara Menéndez¹, Khátia Munguambe^{4 – 1}ISGlobal – Barcelona Institute for Global Health, Barcelona, Spain, ²Bureau d’Étude et de Gestion de l’Information Statistique, Kinshasa, Congo, Democratic Republic of the, ³Malagasy Associates for Numerical Information and Statistical Analysis, Antananarivo, Madagascar, ⁴Centro de Investigação em Saúde de Manhiça, Maputo, Mozambique, ⁵University of Calabar, Calabar, Nigeria, ⁶Jhpiego, affiliate of Johns Hopkins University, Baltimore, MD, United States

Ebonyi members of Integrated Health Data Management Team (IHDTM) providing mentorship to HCWs during RDQA visit to Akpaka

Bartholomew Odio et al. work with CHWs who promote community delivery of intermittent preventive treatment for pregnant women in Ebonyi State, Nigeria for the UNITAID/Jhpiego TiPToP Project. They shared below some of their findings from the virtual 69^th Annual Meeting of American Society of Tropical Medicine and Hygiene this week. (Photos are from Bright Orji)

In Nigeria, malaria remains a high burden disease and pregnant women are among the most vulnerable. According to the 2019, World Malaria Report only 31% of pregnant women received the World Health

CHWs at data validation meeting during COVID 19 pandemic social distancing

Organization recommended minimum of three doses of IPTp with Sulfadoxine-Pyrimethamine (SP) compared to 17% in Nigeria (DHS, 2018). In order to expand the coverage of this life-saving intervention, the Transforming Intermittent Preventive Treatment for Optimal Pregnancy project engaged community health workers (CHWs) to introduce the delivery of community IPTp (C-IPTp) to eligible pregnant women, in addition to women being able to access IPTp at antenatal care in Ohaukwu district of Ebonyi State, Nigeria.

Community meeting in Bosso

As findings from studies in Nepal and Uganda showed that the sex of CHWs were correlated with uptake of iCCM services, we examined routine project data to determine if the sex of the CHWs was correlated with uptake of IPTp. Of the 462 CHWs selected, 49% were male and 51% were female and were deployed at a ratio of one CHW to 27 pregnant women. All CHWs were trained on early identification of pregnant women, referral to antenatal care and provision of C-IPTp using SP.

A trained data analyst extracted routine data from the national community health management information system for 13,733 pregnant women who received IPTp from CHWs between June and November 2019. Data abstracted included CHW sex and number of PW that received IPTp. Findings showed that female CHWs distributed 60% of IPTp1, 65% IPTp2, and 61% IPTp3 (p-value=0.00 for all comparisons). The data suggest that trained female CHWs may reach more pregnant women than their male counterparts in community directed IPTp interventions.

Authors and Affiliations

Bartholomew Odio(1), Onyinye Udenze(1), Chinyere Nwani(1), Herbert Onuoha(1), Elizabeth Njoku(1), Lawrence Nwankwo(2), Oniyire Adetiloye(1), Bright Orji(1) 1.Jhpiego, Nigeria, Abuja, Nigeria, 2.State Ministry of Health, Nigeria, Abuja, Nigeria. This is part of the TiPToP Project funded by UNITAID.

Today’s stories cover three continents including Surveillance for imported malaria in Sri Lanka, community perceptions in Colombia and Annual Fluctuations in Malaria Transmission Intensity in 5 sub-Saharan countries. In addition there is an overview of microscopy standards and an Integrated Macroeconomic Epidemiological Demographic Model to aid in planning malaria elimination. We also see how COVID-19 is disturbing Seasonal Malaria Chemoprevention activities in Burkina Faso. Read more by following the links in the sections below.

Will More of the Same Achieve Malaria Elimination?

… Results from an Integrated Macroeconomic Epidemiological Demographic Model. Historic levels of funding have reduced the global burden of malaria in recent years. Questions remain, however, as to whether scaling up interventions, in parallel with economic growth, has made malaria elimination more likely today than previously. The consequences of “trying but failing” to eliminate malaria are also uncertain. Reduced malaria exposure decreases the acquisition of semi-immunity during childhood, a necessary phase of the immunological transition that occurs on the pathway to malaria elimination. During this transitional period, the risk of malaria resurgence increases as proportionately more individuals across all age-groups are less able to manage infections by immune response alone. We developed a robust model that integrates the effects of malaria transmission, demography, and macroeconomics in the context of Plasmodium falciparum malaria within a hyperendemic environment.

The authors analyzed the potential for existing interventions, alongside economic development, to achieve malaria elimination. Simulation results indicate that a 2% increase in future economic growth will increase the US$5.1 billion cumulative economic burden of malaria in Ghana to US$7.2 billion, although increasing regional insecticide-treated net coverage rates by 25% will lower malaria reproduction numbers by just 9%, reduce population-wide morbidity by ?0.1%, and reduce prevalence from 54% to 46% by 2034. As scaling up current malaria control tools, combined with economic growth, will be insufficient to interrupt malaria transmission in Ghana, high levels of malaria control should be maintained and investment in research and development should be increased to maintain the gains of the past decade and to minimize the risk of resurgence, as transmission drops. © The American Society of Tropical Medicine and Hygiene [open-access]

Microscopy standards to harmonise methods for malaria clinical research studies

Research Malaria Microscopy Standards (ReMMS) applicable to malaria clinical research studies have been published in Malaria Journal. The paper describes the rationale for proposed standards to prepare, stain and examine blood films for malaria parasites. The standards complement the methods manual(link is external) previously published by the World Health Organization and UNICEF/UNDP/World Bank/WHO Special Programme for Research and Training in Tropical Diseases (TDR). The standards aim to promote consistency and comparability of data from microscopy performed for malaria research and hence to strengthen evidence for improvements in malaria prevention, diagnostics and treatment.

Microscopy is important in both malaria diagnosis and research. It is used to differentiate between Plasmodium species and stages and to estimate parasite density in the blood – an important determinant of the severity of disease. It is also used to monitor the effectiveness of drugs based on the rate at which parasites recrudesce or are cleared from the blood.

While rapid diagnostic tests have replaced microscopy in some contexts, microscopy remains an essential tool to support clinical diagnosis and research. The standardisation of methods allows direct comparisons from studies conducted across different points in time and location. This facilitates individual participant data meta-analyses, recognised as the gold standard approach to generate evidence for improvements in interventions and hence patient outcomes.

Estimating Annual Fluctuations in Malaria Transmission Intensity and in the Use of Malaria Control Interventions in Five Sub-Saharan African Countries

RTS,S/AS01E malaria vaccine safety, effectiveness, and impact will be assessed in pre- and post-vaccine introduction studies, comparing the occurrence of malaria cases and adverse events in vaccinated versus unvaccinated children. Because those comparisons may be confounded by potential year-to-year fluctuations in malaria transmission intensity and malaria control intervention usage, the latter should be carefully monitored to adequately adjust the analyses. This observational cross-sectional study is assessing Plasmodium falciparum parasite prevalence (PfPR) and malaria control intervention usage over nine annual surveys performed at peak parasite transmission. Plasmodium falciparum parasite prevalence was measured by microscopy and nucleic acid amplification test (quantitative PCR) in parallel in all participants, and defined as the proportion of infected participants among participants tested. Results of surveys 1 (S1) and 2 (S2), conducted in five sub-Saharan African countries, including some participating in the Malaria Vaccine Implementation Programme (MVIP), are reported herein; 4,208 and 4,199 children were, respectively, included in the analyses.

Plasmodium falciparum parasite prevalence estimated using microscopy varied between study sites in both surveys, with the lowest prevalence in Senegalese sites and the highest in Burkina Faso. In sites located in the MVIP areas (Kintampo and Kombewa), PfPR in children aged 6 months to 4 years ranged from 24.8% to 27.3%, depending on the study site and the survey. Overall, 89.5% and 86.4% of children used a bednet in S1 and S2, of whom 68.7% and 77.9% used impregnated bednets. No major difference was observed between the two surveys in terms of PfPR or use of malaria control interventions. © The American Society of Tropical Medicine and Hygiene [open-access]

Community perception of malaria in a vulnerable municipality in the Colombian Pacific

Malaria primarily affects populations living in poor socioeconomic conditions, with limited access to basic services, deteriorating environmental conditions, and barriers to accessing health services. Control programmes are designed without participation from the communities involved, ignoring local knowledge and sociopolitical and cultural dynamics surrounding their main health problems, which implies imposing decontextualized control measures that reduce coverage and the impact of interventions. The objective of this study was to determine the community perception of malaria in the municipality of Olaya Herrera in the Colombian Pacific.

A 41-question survey on knowledge, attitudes, and practices (KAP) related to malaria, the perception of actions by the Department of Health, and access to the health services network was conducted. In spite of the knowledge about malaria and the efforts of the Department of Health to prevent it, the community actions do not seem to be consistent with this knowledge, as the number of cases of malaria is still high in the area.

Use of a Plasmodium vivax genetic barcode for genomic surveillance and parasite tracking in Sri Lanka

Sri Lanka was certified as a malaria-free nation in 2016; however, imported malaria cases continue to be reported. Evidence-based information on the genetic structure/diversity of the parasite populations is useful to understand the population history, assess the trends in transmission patterns, as well as to predict threatening phenotypes that may be introduced and spread in parasite populations disrupting elimination programmes. This study used a previously developed Plasmodium vivax single nucleotide polymorphism (SNP) barcode to evaluate the population dynamics of P. vivax parasite isolates from Sri Lanka and to assess the ability of the SNP barcode for tracking the parasites to its origin.

A total of 51 P. vivax samples collected during 2005–2011, mainly from three provinces of the country, were genotyped for 40 previously identified P. vivax SNPs using a high-resolution melting (HRM), single-nucleotide barcode method. The proportion of multi-clone infections was significantly higher in isolates collected during an infection outbreak in year 2007. Plasmodium vivax parasite isolates collected during a disease outbreak in year 2007 were more genetically diverse compared to those collected from other years. In-silico analysis using the 40 SNP barcode is a useful tool to track the origin of an isolate of uncertain origin, especially to differentiate indigenous from imported cases. However, an extended barcode with more SNPs may be needed to distinguish highly clonal populations within the country.

Coronavirus rumours and regulations mar Burkina Faso’s malaria fight

By Sam Mednick, Thomson Reuters Foundation: MOAGA, Burkina Faso – Health worker Estelle Sanon would hold the 18-month-old and administer the SMC dose herself, but because of coronavirus she has to keep a distance from her patients. “If I am standing and watching the mother do it, it’s as if I’m not doing my work,” said Sanon, a community health volunteer assisting in a seasonal campaign to protect children in the West African country from the deadly mosquito-borne disease.

Burkina Faso is one of the 10 worst malaria-affected nations in the world, accounting for 3% of the estimated 405,000 malaria deaths globally in 2018, according to the World Health Organization (WHO). More than two-thirds of victims are children under five. Now there are fears malaria cases could rise in Burkina Faso as restrictions due to coronavirus slow down a mass treatment campaign and rumours over the virus causing parents to hide their children, according to health workers and aid officials.

“COVID-19 has the potential to worsen Burkina Faso’s malaria burden,” said Donald Brooks, head of the U.S. aid group Initiative: Eau, who has worked on several public health campaigns in the country.  “If preventative campaigns can’t be thoroughly carried out and if people are too scared to come to health centres … it could certainly increase the number of severe cases and the risk of poor outcomes.”

During peak malaria season, from July to November, community health workers deploy across Burkina Faso to treat children with seasonal malaria chemoprevention (SMC). This is the second year the campaign will cover the whole country with more than 50,000 volunteers going door-to-door, said Gauthier Tougri, coordinator for the country’s anti-malaria programme. Logistics were already challenging. Violence linked to jihadists and local militias has forced more than one million people to flee their homes, shuttered health clinics and made large swathes of land inaccessible. Now the coronavirus has made the task even harder, health workers said.

People in Cape Verde evolved better malaria resistance in 550 years

Yes, we are still evolving. And one of the strongest examples of recent evolution in people has been found on the Cape Verde islands in the Atlantic, where a gene variant conferring a form of malaria resistance has become more common.

Portuguese voyagers settled the uninhabited islands in 1462, bringing slaves from Africa with them. Most of the archipelago’s half a million inhabitants are descended from these peoples. Most people of West African origin have a variant in a gene called DARC that protects.

Deadly malaria and cholera outbreaks grow amongst refugees as COVID pandemic strains health systems.

Apart from the strain on health facilities during the pandemic, in some countries such as Somalia, Kenya and Sierra Leone, we are seeing that a fear of exposure to COVID-19 has prevented parents from taking their children to hospital, delaying diagnosis and treatment of malaria and increasing preventable deaths. COVID restrictions in some countries have also meant pregnant women have missed antimalarial drugs. Untreated malaria in pregnant women can increase the risk of anaemia, premature births, low birth weight and infant death. According to the World Health Organization (WHO), 80% of programs designed to fight HIV, tuberculosis and malaria have been disrupted due to the pandemic and 46% of 68 countries report experiencing disruptions in the treatment and diagnosis of malaria.