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  • Influenza Situation Report: Regional Updates
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  • Influenza Situation Report: Regional Updates
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Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 19 (16 May 2025)

Actualización regional, Influenza y otros virus respiratorios. Semana Epidemiológica 19 (16 de mayo del 2025)

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Date
2025-05-16
Author
Pan American Health Organization
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Abstract
[WEEKLY SUMMARY]. Regional Situation: In general, North America and parts of the Caribbean continue to see a decline in influenza activity, mainly associated with influenza A(H1N1)pdm09 and influenza B. RSV activity remains at interseasonal levels in North America, while in the Caribbean, it continues to decline. SARS-CoV-2 activity remains low in North America, but in the Caribbean, it shows a slight increase. In Central America, influenza A(H1N1)pdm09 circulation continues its downward trend in recent epidemiological weeks (EW), with a positivity rate of 18.4%. RSV activity is shifting toward an increase, while SARS-CoV-2 circulation remains low. The Andean subregion shows a decrease in SARS-CoV-2 circulation and an increase in influenza A(H3N2) detection. RSV circulation continues to rise, with a positivity rate of 11.9%. In Brazil/Southern Cone, influenza A(H1N1)pdm09 continues its upward trend, with a positivity rate of 22.2%. SARS-CoV-2 detection remains low, while RSV is trending upward, with a positivity rate of 4.3%. Across the region, there is a high percentage (9.6%) of detections of other respiratory viruses (ORV), with rhinovirus standing out in North America, as well as in the Andean region, Brazil, and the Southern Cone. Parainfluenza circulation has been detected in the Caribbean.
 
[RESUMEN SEMANAL]. Situación regional: En general, América del Norte y partes del Caribe continúan en el descenso de la actividad de influenza principalmente asociado a influenza A(H1N1)pmdo9 e influenza B. La actividad del VRS se encuentra en niveles interestacionales en América del Norte, y en el Caribe, continúa su descenso. La actividad de SARS-CoV-2 se mantiene baja en América del Norte, sin embargo, en el Caribe muestra un leve incremento. En América Central, la circulación de influenza A(H1N1)pmd09 mantiene su tendencia a la disminución en las últimas semanas epidemiológicas (SE), registrando una positividad del 18,4%. La actividad de VRS muestra un cambio de tendencia hacia el incremento y SARS-CoV-2 se mantiene en baja circulación. La Subregión Andina presenta una disminución en la circulación de SARS-CoV-2 y un aumento en detección de Influenza A(H3N2), también se mantuvo el incremento en la circulación de VRS presentando una positividad del 11,9%. En Brasil/Cono Sur continúa el ascenso de influenza A(H1N1)pmd09 presentando una positividad del 22,2%. En el caso de SARS-CoV-2 se mantiene su baja detección. El VRS presenta una tendencia ascendente y con una positividad del 4,3%. En la región existe un alto porcentaje (9,6%) de detección de otros virus respiratorios (OVR), destacando Rinovirus en Norte América, así como en la región Andina, Brasil y el Cono sur. En el Caribe se ha detectado circulación de parainfluenza.
 
Pages
65 p.
Subject
Influenza, Human; COVID-19; SARS-CoV-2; International Health Regulations; Americas; Gripe Humana; Reglamento Sanitario Internacional; Américas; Región del Caribe
URI
https://iris.paho.org/handle/10665.2/67556
Collections
  • Influenza Situation Report: Regional Updates

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