WHO Scientific advisory group issues report on origins of COVID-19
Jun 27, 2025 · 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 …
Coronavirus - World Health Organization (WHO)
Sep 29, 2025 · 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 …
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 …
Ebola virus disease - Democratic Republic of the Congo
Dec 1, 2025 · Ebola virus is enzootic and a resurgence from viral persistence in survivors has been described in recent epidemics. Re-emergence of EVD is a major public health concern in the …
Chikungunya epidemiology update - June 2025
Jun 11, 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 …
Marburg virus disease - World Health Organization (WHO)
Jan 20, 2025 · WHO fact sheet on Marburg haemorrhagic fever provides information on transmission, signs and symptoms, diagnosis, prevention and WHO response.
Avian Influenza A (H5N5) - United States of America
6 days ago · 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 …
Marburg virus disease - Ethiopia - World Health Organization (WHO)
Nov 21, 2025 · Marburg virus disease (MVD) is a severe hemorrhagic fever caused by either of two closely related viruses, Marburg virus and Ravn virus, which are closely related to the Ebola viruses. …
Trends of acute respiratory infection, including human …
Jan 7, 2025 · 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 …
Nuevo coronavirus 2019 - World Health Organization (WHO)
La OMS está colaborando estrechamente con expertos mundiales, gobiernos y asociados para ampliar rápidamente los conocimientos científicos sobre este nuevo virus, rastrear su propagación y …