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 …

Information on COVID-19, the infectious disease caused by the most recently discovered coronavirus.

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 …

In some cases, asymptomatic infections with the A (H5N1) virus have been reported in individuals with known exposure to infected animals and environments. A definitive diagnosis of human avian …

Aug 26, 2024 · WHO fact sheet on mpox: includes key facts, definition, outbreaks, transmission, symptoms, diagnosis, treatment, prevention, WHO response.

Nov 27, 2025 · WHO fact sheet on COVID-19, including information on symptoms, transmission, treatment, prevention, vaccines and and WHO's work in this area.

Apr 24, 2025 · The virus can get into the human population when people have close contact with the blood, secretions, organs or other bodily fluids of infected animals such as fruit bats, chimpanzees, …

Jan 20, 2025 · WHO fact sheet on Marburg haemorrhagic fever provides information on transmission, signs and symptoms, diagnosis, prevention and WHO response.

Jul 23, 2025 · Hepatitis B is a viral infection that attacks the liver and can cause both acute and chronic disease. This fact sheet provides information about transmission, symptoms, diagnosis, treatment, …

Oct 3, 2025 · Chikungunya is a mosquito-borne viral disease caused by the CHIKV, an RNA virus in the alphavirus genus of the family Togaviridae. CHIKV is transmitted by infected female mosquitoes, …