health
diciembre 28, 2025
INS explica la influenza H3N2 variante K tras detectarse el primer caso en Colombia
El Instituto Nacional de Salud (INS) explica que la influenza es un virus respiratorio que se divide principalmente en tres tipos: A, B y C. Todos pueden infectar al ser humano, pero la Influenza A es la más común y es la que con mayor frecuencia causa síndromes gripales que pueden requerir atención médica dependiendo del estado de salud de cada paciente.
TL;DR
- Influenza is a respiratory virus categorized into types A, B, and C, with Influenza A being the most common and frequently causing flu syndromes.
- Influenza A is classified based on its Hemagglutinin (H) and Neuraminidase (N) proteins, leading to designations like AH1N1 and AH3N2.
- H3N2 is a specific subtype of Influenza A, identified by Hemaglutinina 3 and Neuraminidasa 2.
- A growing variant, known as subclade 'K' within H3N2, is circulating and has triggered epidemiological alerts.
- This 'K' variant is an evolution within the established H3N2 classification and does not represent a new virus.
- The INS emphasizes that existing influenza vaccines can combat this variant, and it is a seasonal occurrence, not a new pandemic.