WHO recommends artemisinin-based combination therapies for treating uncomplicated malaria, alongside studies to monitor treatment effectiveness. Given the threat of antimalarial resistance, including partial resistance in several African countries, molecular tools are vital for tracking resistance. ...In 2015, WHO launched the External Quality Assessment scheme for nucleic acid amplification testing to ensure reliable lab results. Coordinated by WHO and operated by the United Kingdom National External Quality Assessment Service for Parasitology, the scheme provides quality-controlled specimens and reports to help improve testing accuracy. Experts recently discussed expanding the scheme to include antimalarial resistance markers.
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2nd edition. The purpose of this document is to present updated standardized protocols that P. falciparum-endemic countries can use to determine the prevalence of parasites with pfhrp2/3 gene deletions causing negative HRP2 RDT results among symptomatic falciparum patients. The findings should be us...ed to guide RDT selection; more specifically when to shift away from exclusive use of HRP2 to detect P. falciparum infections.
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National tuberculosis (TB) prevalence surveys provide a nationally representative measurement of the burden of TB disease in the population, at a given point in time. Repeat surveys allow assessment of trends and tracking of progress towards national and global targets for reductions in TB disease b...urden. Survey data also provide important insights that can help national TB programmes to identify ways to improve TB diagnosis and treatment.
National TB prevalence surveys are relevant in countries that do not yet have national disease notification and vital registration systems that are of sufficiently high quality and coverage to allow reliable tracking of TB disease burden.
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