- WHO Scientific advisory group issues report on origins of COVID-19
The WHO Scientific Advisory Group for the Origins of Novel Pathogens (SAGO), a panel of 27 independent, international, multidisciplinary experts, today published its report on the origins of SARS-CoV-2, the virus responsible for the COVID-19 pandemic
- Coronavirus - World Health Organization (WHO)
Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus Most people infected with the virus will experience mild to moderate respiratory illness and recover without requiring special treatment However, some will become seriously ill and require medical attention
- WHO prequalifies first maternal respiratory syncytial virus vaccine
On 12 March 2025, the World Health Organization (WHO) prequalified the first maternal respiratory syncytial virus (RSV) vaccine to protect infants against one of the most common causes of acute lower respiratory infections in children globally
- Chikungunya epidemiology update - June 2025
Chikungunya virus (CHIKV) is a mosquito-borne virus primarily transmitted by Aedes mosquitoes It causes acute illness characterized by fever, rash, and debilitating joint pain, with some patients experiencing long-term joint pain and disabilities
- Marburg virus disease - World Health Organization (WHO)
WHO fact sheet on Marburg haemorrhagic fever provides information on transmission, signs and symptoms, diagnosis, prevention and WHO response
- Coronavirus disease (COVID-19)
WHO fact sheet on COVID-19, including information on symptoms, transmission, treatment, prevention, vaccines and and WHO's work in this area
- Avian Influenza A (H5N5) - United States of America
In the case of a confirmed or suspected human infection caused by a novel influenza A virus with pandemic potential, including avian influenza viruses, early clinical management, a thorough epidemiologic investigation of animal exposure history, travel, and contact tracing should be conducted even while awaiting the confirmatory laboratory results
- Trends of acute respiratory infection, including human metapneumovirus . . .
In many countries of the Northern Hemisphere, trends in acute respiratory infections increase at this time of year These increases are typically caused by seasonal epidemics of respiratory pathogens such as seasonal influenza, respiratory syncytial virus (RSV), and other common respiratory viruses, including human metapneumovirus (hMPV), as well as mycoplasma pneumoniae Many countries
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