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Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 17 (5 May 2023)

Actualización regional, Influenza y otros virus respiratorios. Semana Epidemiológica 17 (5 de mayo del 2023)

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Date
2023-05-05
Author
Pan American Health Organization
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Abstract
[WEEKLY SUMMARY]. North America: Influenza activity has shown a slight increase while remaining at low levels. During the last 4 EW, the predominant influenza viruses have been B (Victoria), with less circulation of influenza A (mostly A(H1N1)pdm09). Respiratory Syncytial Virus (RSV) activity has shown a pronounced rise with medium levels of circulation. SARS-CoV-2 activity has remained high. Caribbean: Influenza activity has shown a rise with medium levels of activity. During the last 4 EW, the predominant influenza viruses have been B (Victoria), with less circulation of influenza A (mostly A(H1N1)pdm09). RSV activity has been low. SARS-CoV-2 activity has shown an increase and is currently at medium levels of circulation. Central America: Influenza activity has shown medium levels of circulation, remaining stable. During the last 4 EW, the predominant influenza viruses have been A, mostly A(H1N1)pdm09, with less circulation of influenza B (Victoria). RSV activity has been low. SARS-CoV-2 activity has remained low and has decreased in recent weeks. Andean: Influenza activity has shown an increase in the number of detections while remaining stable at low levels of positivity. During the last 4 EW, the predominant influenza viruses have been A, mostly A(H1N1)pdm09, with less circulation of influenza B (Victoria). RSV activity has shown an increase and is currently at medium levels of circulation. SARS-CoV-2 activity has shown an increase and is currently at medium levels of circulation. Brazil and Southern Cone: Influenza activity has shown a pronounced increase and is currently at medium levels of circulation. During the last 4 EW, the predominant influenza viruses have been A, mostly A(H1N1)pdm09, with less circulation of influenza B (Victoria). RSV activity has shown a pronounced rise and is currently at medium levels of circulation. SARS-CoV-2 activity has remained low.
 
[RESUMEN SEMANAL]. Norteamerica: La actividad de influenza ha presentado un ligero incremento aunque manteniéndose en niveles bajos. Durante las 4 últimas SE los virus influenza predominantes han sido B (Victoria), con circulación en menor medida de influenza A (mayoritariamente A(H1N1)pdm09). La actividad del VSR ha presentado un ascenso pronunciado con niveles medios de circulación. La actividad del SARSCoV- 2 se ha mantenido elevada. Caribe: La actividad de la influenza ha presentado un ascenso con niveles medios de actividad. Durante las 4 últimas SE los virus influenza predominantes han sido B (Victoria), con circulación en menor medida de influenza A (mayoritariamente A(H1N1)pdm09). La actividad del VSR ha sido baja. La actividad del SARS-CoV-2 ha presentado un incremento encontrándose en niveles medios de circulación. Central America: La actividad de la influenza ha presentado niveles medios de circulación, manteniéndose estable. Durante las 4 últimas SE los virus influenza predominantes han sido A, mayoritariamente A(H1N1)pdm09, con circulación en menor medida de influenza B (Victoria). La actividad del VSR ha sido baja. La actividad del SARS-CoV-2 se ha mantenido baja presentando un descenso en las últimas semanas. Andina: La actividad de la influenza ha presentado un incremento en el número de detecciones manteniéndose la positividad estables a niveles bajos. Durante las 4 últimas SE los virus influenza predominantes han sido A, mayoritariamente A(H1N1)pdm09, con circulación en menor medida de influenza B (Victoria). La actividad del VSR ha presentado un incremento situándose en niveles medios de circulación. La actividad del SARS-CoV-2 ha presentado un incremento encontrándose en niveles medios de circulación Brasil y Cono Sur: La actividad de la influenza ha presentado un incremento pronunciado situándose en niveles medios de circulación. Durante las 4 últimas SE los virus influenza predominantes han sido A, mayoritariamente A(H1N1)pdm09, con circulación en menor medida de influenza B (Victoria). La actividad del VSR ha presentado un ascenso pronunciado con niveles medios de circulación. Laactividad del SARS-CoV-2 se ha mantenido baja.
 
Subject
Influenza, Human; SARS-CoV-2; COVID-19; Betacoronavirus; International Health Regulations; Americas; Caribbean Region; Gripe Humana; Reglamento Sanitario Internacional; Américas; Región del Caribe
URI
https://iris.paho.org/handle/10665.2/57518
Collections
  • Influenza Situation Report: Regional Updates

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