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Comic
Having established the goal of eliminating transmission of gambiense human African trypanosomiasis (g-HAT) to humans, the HAT-e-TAG considered which elements should be developed to assess this goal.
HAT diagnosis relies on laboratory techniques because clinical signs and symptoms are unspecific. Serodiagnostic tests exist only for Tbg and are based on the detection of specific antibodies, thus they are not confirmatory of infection. With the current low disease prevalence, the positive predicti
...
ve value of serological tests is particularly low. Field-applicable tools include the card agglutination test for trypanosomiasis (CATT) used mainly in active screening by specialized mobile teams, and the rapid diagnostic tests that are more suitable for individual testing at point-of-care.
more
In February 2008, WHO launched the Atlas of HAT as a collaborative initiative with the Food and Agriculture Organization of the United Nations (FAO), within the framework of the Programme Against African Trypanosomosis (PAAT). The Atlas database is built by the systematic collection of information a
...
round every HAT case detected worldwide, actively or passively, in endemic and non-endemic countries, and also on the surveillance activities carried out per village. The data are aggregated by year, by location and by some other parameters. All cases and activities are georeferenced at the village level to within an average accuracy of about 1.4 km. The Atlas contains complete information since the year 2000 from the 25 countries reporting at least one HAT case
more
The Global Health Observatory
The Global Health Observatory
Database with maps and country-specific numbers
Trichiasis surgery for trachoma
recommended
3rd edition
Trachoma is the leading infectious cause of blindness worldwide. In April 2023, it was a public health problem
in approximately 40 countries, with an estimated 116 million people at risk and 1.5 million people affected
by the late blinding stage o
...
f the disease (1). About 84% of those at risk of trachoma are in the World Health
Organization (WHO)’s African Region; about 52% of those at risk of trachoma live in Ethiopia
more
Trachoma is the world’s leading infectious cause of blindness. It is one of 18 neglected
tropical diseases (NTDs) that affect over one billion of the world’s poorest people.
The WHO Vision and eye screening implementation handbook (VESIH) offers a step-by-step guidance for conducting vision and eye screenings in community and primary care settings. The evidence-based interventions are drawn from the WHO Package of eye care interventions and developed with a focus on del
...
ivering screenings easily, safely, and effectively in low- and low–intermediate-resource settings. The early identification through screenings ensures timely treatments and management to avoid vision impairment in high-risk populations, including newborns, pre-school children, school children, and older adults.
more
Podcast: Why is Dengue fever spreading to places it did not exist before? What are the symptoms and treatments? What about vaccines? Dr Raman Velayudhan explains in Science in 5.
Questions and answer regarding Dengue (immunization and vaccines)
Weekly Epidemiological Record. This report summarizes application of the SAFE strategy against trachoma during 2023. It includes estimates of the global population at risk of trachoma blindness based on district-by-district data submitted to WHO by national programmes. Summarizing the epidemiologica
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l situation in this way is inherently complex because, for any district, up to 3 serial estimates of prevalence may be valid at different times during a calendar year.
more
Indoor residual spraying (IRS) involves applying residual insecticide to potential vector resting sites on the interior surfaces of human dwellings or other buildings. The main aim of IRS is to kill vectors before they are able to transmit pathogens to humans. When carried out correctly, IRS has his
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torically been shown to be a powerful intervention to reduce adult vector density and longevity for mosquitoes, sand flies and triatomine bugs and can reduce the transmission of vector-borne diseases.
more
Antimicrobial resistance (AMR) is a global public health crisis that resulted in 1.14 million deaths in 2021. According to the Institute for Health Metrics and Evaluation estimates, 96 416 of thes
...
e deaths occurred in the World Health Organization (WHO) Eastern Mediterranean Region. All 22 countries/territories in the Eastern Mediterranean Region are enrolled in the global AMR
surveillance system, and 17 countries/territories reported data in 2024 (for the year 2023). The total number of isolates reported to the system increased sixfold between 2017 and 2022, but the proportion of blood isolates is relatively very low. Most of the data come from public sector laboratories or hospitals, although the private sector has increased its participation in some countries/territories recently. Three pathogens account for three quarters of all the reported pathogens – Escherichia coli
(26%), Klebsiella pneumoniae (23%), and Staphylococcus aureus (22%).
more
The Global Programme on Tuberculosis & Lung Health of the World Health Organization (WHO/GTB) is now combining all current recommendations into one overall set of consolidated guidelines on TB. The
...
guidelines contain recommendations pertaining to all areas related to the programmatic management of TB (e.g. screening, preventive treatment, diagnostics, patient support, and the treatment of drug-susceptible TB and DR-TB). The consolidated guidelines contain modules specific to each programmatic area.
more
Multi-country outbreak of cholera External Situation Report # 23, published 20 February 2025
The document provides an overview of malaria in the Americas, describing its transmission, symptoms, vulnerable populations, and regional trends, while highlighting prevention strategies and the efforts of PAHO/WHO and member states to eliminate the disease by 2020.
