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 enfermedad respiratoria grave en las personas mayores.

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.

Nipah Virus Infection - India - World Health Organization (WHO)
Between 17 May and 12 July 2025, the Information and Public Relations Department, Government of Kerala informed through a series of official press releases about four confirmed cases, including two deaths, due to Nipah virus (NiV) infection in two districts of Kerala State. NiV infection is a bat-borne disease transmitted to humans through infected animals (such as bats or pigs), contaminated ...

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.

WHO Consultation on the Composition of Influenza Virus Vaccines for Use ...
Recommendations for the composition of influenza virus vaccines for use in the 2026 Southern Hemisphere influenza season; and Review of the need and subsequent selection of new A (H5) and other subtypes or variant viruses for the development of new candidate vaccine viruses for pandemic preparedness purposes.

Recommendations announced for influenza vaccine composition for the ...
The World Health Organization (WHO) today announced its recommendations for the viral composition of influenza vaccines for use in the 2026 influenza season in the southern hemisphere. The announcement was made at an Information Meeting after a 4-day Consultation on the Composition of Influenza Virus Vaccines.

Recommended composition of influenza virus vaccines for use in the 2026 ...
Frequently Asked Questions - Recommended composition of influenza virus vaccines Antigenic and genetic characteristics of zoonotic influenza A viruses and development of candidate vaccine viruses for pandemic preparedness in the 2026-2027 northern hemisphere influenza season

Ebola virus disease - Democratic Republic of the Congo
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 through human-to-human transmission.

Enfermedad por el virus del Oropuche - World Health Organization (WHO)
La enfermedad por el virus del Oropuche está causada por una infección vírica que puede causar fiebre, cefalea, dolores articulares y musculares, escalofríos, náuseas, vómitos y exantemas. La mayoría de los infectados se recuperan espontáneamente, pero algunos presentan síntomas graves.

Sudan virus disease - Uganda - World Health Organization (WHO)
Sudan virus disease is a severe disease, caused by a virus, Sudan virus (SUDV), belonging to the same family as Ebola virus. It can result in high case fatality. It is typically characterized by acute onset of fever with non-specific symptoms/signs (e.g., abdominal pain, anorexia, fatigue, malaise, myalgia, sore throat) usually followed several days later by nausea, vomiting, diarrhoea, and ...