Regional Update, Influenza. Epidemiological Week 41 (21 October 2022)
Actualización regional, Influenza. Semana Epidemiológica 41 (21 de de octubre del 2022)
Date
2022-10-27Metadata
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[WEEKLY SUMMARY]. North America: Influenza activity remained low throughout the subregion. Influenza A(H3N2) predominated with the co-circulation of influenza A(H1N1)pdm09 and influenza B (lineage undetermined). SARS-CoV-2 activity continued to decrease overall. In Canada, influenza was at baseline levels. In Mexico, influenza activity continued to increase at moderate-intensity levels. In the United States, most of the country reported an early influenza activity increase, with H3N2 predominance. Overall, in the subregion, RSV circulation continues to increase.
Caribbean: Influenza activity remained low across the subregion, predominating the influenza A(H3N2) virus circulation. In Haiti, SARS-CoV-2 activity continues elevated.
Central America: Influenza activity remained low, with influenza A(H3N2) predominance and the co-circulation of influenza B/Victoria. An increase in influenza activity was reported in El Salvador, Guatemala, and Nicaragua. SARS-CoV-2 activity continues to increase in Costa Rica and decrease in Panama. RSV activity is increased in the subregion.
Andean: Influenza activity remained low, with the predominance of influenza A(H3N2) and co-circulation of influenza B/Victoria. Overall, SARS-CoV-2 activity was low in the subregion, while RSV activity increased in Colombia.
Brazil and Southern Cone: Influenza activity has increased in the subregion, with influenza A(H3N2) predominance and co-circulation of influenza A(H1N1)pdm09 and influenza B/Victoria. Argentina and Chile reported increased influenza activity, while RSV activity remains high in Brazil and Uruguay. [RESUMEN SEMANAL]. América del Norte: la actividad de la influenza se mantuvo baja en toda la subregión. El virus A(H3N2) predominó con la circulación concurrente de influenza A(H1N1)pdm09 e influenza B (linaje indeterminado). La actividad del SARS-CoV-2 continuó disminuyendo en general. En Canadá, la influenza se ubicó en los niveles basales. En México, la actividad de la influenza continuó aumentando a niveles de intensidad moderada. En los Estados Unidos, la mayor parte del país notificó un aumento temprano de la actividad de la influenza, con predominancia de H3N2. En general, en la subregión, la circulación del VRS continúa aumentando.
Caribe: la actividad de la influenza se mantuvo en los niveles basales en toda la subregión, con predominio del virus influenza A(H3N2). En Haití, la actividad del SARS-CoV-2 continúa elevada.
América Central: la actividad de influenza se mantuvo baja, con predominio de influenza A(H3N2) y la circulación concurrente de influenza B (linaje indeterminado). Se reportó un aumento en la actividad de la influenza en El Salvador, Guatemala y Nicaragua. La actividad del SARS-CoV-2 continúa aumentada en Costa Rica y disminuyendo en Panamá. La actividad del VRS aumenta en la subregión.
Países Andinos: la actividad de la influenza se mantuvo baja, con predominio de influenza A(H3N2) y circulación concurrente de influenza B/Victoria. En general, la actividad del SARS-CoV-2 estuvo baja en la subregión, mientras que la actividad del VRS aumentó en Colombia.
Brasil y Cono Sur: la actividad de influenza ha aumentado en la subregión, con predominio de influenza A(H3N2) y la circulación concurrente de influenza A(H1N1)pdm09 e influenza B/Victoria. Argentina y Chile reportaron una mayor actividad de influenza, mientras que la actividad del VRS se mantiene elevada en Brasil y Uruguay.
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