Under-diagnosis of asthma in ‘under-fives’ may be alleviated by improved inquiry into disease history. We assessed a questionnaire-based screening tool for asthma among 614 ‘under-fives’ with severe respiratory illness in Uganda. The questionnaire responses were compared to post hoc consensu...s diagnoses by three pediatricians who were guided by study definitions that were based on medical history, physical examination findings, laboratory and radiological tests, and response to bronchodilators. Children with asthma or bronchiolitis were categorized as “asthma syndrome”. Using this approach, 253 (41.2%) had asthma syndrome. History of and present breathing difficulties and present cough and wheezing was the best performing combination of four questionnaire items [sensitivity 80.8% (95% CI 77.6–84.0); specificity 84.7% (95% CI 81.8–87.6)]. The screening tool for asthma syndrome in ‘under-fives’ may provide a simple, cheap and quick method of identifying children with possible asthma. The validity and reliability of this tool in primary care settings should be tested.
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30 April 2020
| COVID-19: Essential health services
31 March 2021
This article is part of a series of explainers on vaccine development and distribution. Learn more about vaccines – from how they work and how they’re made to ensuring safety and equitable access – in WHO’s Vaccines Explained series.
Vaccines are a critical tool in the battl...e against COVID-19, and getting vaccinated is one of the best ways to protect yourself and others from COVID-19.
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Document provides basic information on Hypertension (symptoms, risk factors, complications, treatment) in a descriptive way.
Slideset updated regularly to include the latest data and guidance on COVID-19 risk and management in special populations, including children and pregnant women, and persons with comorbidities.
Available in English, French and Spanish
Available in English, French and Spanish
Country profile: Cote d'Ivoire
Policy brief.
Globally, one in five people with HIV are unaware of their status, despite considerable scale up of HIV testing, treatment and prevention services. Many of those unreached by HIV testing services (HTS) are from key populations, partners of people with HIV and, in Eastern and southern ...Africa, men and young people. Improving the availability, accessibility, friendliness and quality of services is important to address these testing gaps.
At the same time, tools and interventions that increase the demand for HTS are needed to reach people who are uninformed about HTS options and advances in treatment and prevention, people who are not motivated to seek HTS and those who are hesitant to test because of fear of an HIV diagnosis or other reasons.
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This article is part two in a series of explainers on vaccine development and distribution. Part one focused on how vaccines work to protect our bodies from disease-carrying germs. This article focuses on the ingredients in a vaccine and the three clinical trial phases. Part three outlines the nex...t part of the vaccine journey: the steps from completing the clinical trial phases through to distribution
Available in English, French, Spanish, Arabic, Chinese and Russian
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Breastfeeding is the cornerstone of infant and young child survival, nutrition and development and maternal health. The World Health Organization recommends exclusive breastfeeding for the first 6 months of life, followed by continued breastfeeding with appropriate complementary foods for up to 2 ye...ars and beyond.1 Early and uninterrupted skin-toskin contact, rooming-in2 and kangaroo mother care3 also significantly improve neonatal survival and reduce morbidity and are recommended by WHO.
Corrigendum 23 June 2020
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Country profile: Ethiopia
Policy Brief
HIV testing services
December 2016
WHO/HIV/2016.21
26 March 2021 Slideset updated regularly to include the latest data on the evolution and duration of COVID-19 symptoms and prevalence and duration of natural immunity.