Coronavirus - World Health Organization (WHO)
Feb 3, 2026 · 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 …
Virus respiratorio sincitial (VRS)
El virus respiratorio sincitial (VRS) es una de las causas más comunes de infección aguda de las vías respiratorias inferiores en niños en todo el mundo, además de provocar una carga sustancial de …
Nipah virus infection - Bangladesh
Feb 6, 2026 · Nipah virus is a zoonotic pathogen with a high death rate and no licensed vaccine or treatment, though early supportive treatment can save lives. Its reservoirs are fruit bats or flying …
Marburg virus disease - Ethiopia
Marburg virus disease (MVD) is a severe disease caused by either of two closely related viruses, Marburg virus and Ravn virus. MVD has a high case fatality rate, ranging from 24% to 88% from …
Recommended composition of influenza virus vaccines for use in the …
Feb 27, 2026 · Related links: Frequently Asked Questions - Recommended composition of influenza virus vaccines Antigenic and genetic characteristics of zoonotic influenza A viruses and development …
Nipah virus infection - Bangladesh
Feb 17, 2023 · Nipah virus infection in humans causes a range of clinical presentations, from asymptomatic infection (subclinical) to acute respiratory infection and fatal encephalitis. Infected …
Ebola virus disease - Democratic Republic of the Congo
Sep 3, 2025 · Ebola virus disease is a serious, often fatal illness in humans. The virus is transmitted to humans through close contact with the blood or secretions of infected wildlife and then spreads …
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 …
Coronavirus disease (COVID-19)
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.
Nipah virus infection - World Health Organization (WHO)
Aug 6, 2025 · Nipah virus On 3 February 2026, the International Health Regulations National Focal Point (IHR NFP) for Bangladesh notified WHO of one confirmed case of Nipah virus (NiV) infection in …