Many critical questions remain about the effectiveness of COVID-19 vaccines in real-world settings. These questions can only be answered in post-introduction vaccine effectiveness studies.This guidance document outlines an approach to leverage existing surveillance systems for Severe Acute Respirato...ry Infection (SARI) to estimate COVID-19 vaccine effectiveness (VE) in preventing SARI associated with laboratory-confirmed SARS-CoV-2 using existing SARI surveillance systems. The approach uses the test-negative design to evaluate VE; cases are SARI patients who tested positive for SARS-CoV-2, and controls are SARI patients who tested negative for SARS-CoV-2.
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Доклад ВОЗ о глобальной табачной эпидемии, 2009 год: Создание среды, свободной от табачного дыма, – второй из серии докладов ВОЗ, в которых определяется состояние таб...ачной эпидемии и оценивается эффективность мер, принимаемых с целью положить ей конец.
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Background book on Management of the Child with a Serious Infection or Severe Malnutrition
Last updated Friday 20 March
Community Health Volunteers
WHO's Health in the Green Economy sector briefings examine the health impacts of climate change mitigation strategies considered by the Intergovernmental Panel on Climate Change in their Fourth Assessment Report (Climate Change, 2007). Large, immediate health benefits from some climate change strate...gies are to be expected.
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