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  • Influenza Situation Report: Regional Updates
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Regional Update, Influenza. Epidemiological Week 10 (23 March 2022)

Actualización regional, Influenza. Semana Epidemiológica 10 (23 de marzo de 2022)

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Date
2022-03-24
Author
Pan American Health Organization
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Abstract
[WEEKLY SUMMARY]. North America: Overall, influenza activity remained at low levels, and SARS-CoV-2 activity continued to decline. In Canada, influenza A (subtype undetermined) and influenza/B viruses co-circulated. The percentage of positivity for SARS-CoV-2 was slightly higher than the previous week. In Mexico, influenza activity has decreased, and influenza A(H3N2) predominates. SARS-CoV-2 percent positivity decreased. In the United States, influenza activity increases in most parts of the country, although levels remain low. Influenza A(H3N2) and B viruses co-circulated. SARS-CoV-2 activity continues to decrease, and mortality remains high. Caribbean: Influenza activity remained low with influenza A(H3N2) predominating. SARS-CoV-2 percent positivity increased in Martinique, decreased in Haiti and Dominica, and remained at levels observed in the previous week in Jamaica, Saint Lucia, and Suriname. Central America: Influenza activity remained low. In Nicaragua, influenza percent positivity increased slightly but remained at low-intensity levels. SARS-CoV-2 activity decreased in Costa Rica, El Salvador, Honduras, Nicaragua, and Panama. Andean: Overall, influenza activity decreased with few A(H3N2) detections. In Bolivia, Ecuador, and Peru, the percentage of positivity for influenza increased and was at low-intensity levels. Overall, percent positivity increased slightly, but the SARS-CoV-2 activity decreased in Bolivia, Colombia, Ecuador, and Peru. Increased respiratory syncytial virus activity was observed in the subregion. Brazil and Southern Cone: Influenza activity continued at low levels; however, a higher influenza percent positivity was observed at extraordinary intensity levels in Argentina; influenza activity increased slightly at low-intensity levels in Chile, Paraguay, and Uruguay. SARS-CoV-2 activity and percentage positivity decreased in Argentina, Brazil, Chile, and Uruguay. Increased respiratory syncytial virus activity was observed in the subregion.
 
[RESUMEN SEMANAL]. América del Norte: en general, la actividad de la influenza se mantuvo en niveles bajos y la actividad del SARS-CoV-2 continuó disminuyendo. En Canadá, los virus de la influenza A (subtipo indeterminado) e influenza/B circularon concurrentemente. El porcentaje de positividad para SARS-CoV-2 fue ligeramente superior al de la semana anterior. En México, la actividad de la influenza disminuyó y predomina la influenza A(H3N2). El porcentaje de positividad de SARS-CoV-2 disminuyó. En los Estados Unidos, la actividad de la influenza aumentó en la mayor parte del país, aunque los niveles siguen siendo bajos. Los virus de la influenza A(H3N2) y B circularon concurrentemente. La actividad del SARS-CoV-2 continúa disminuyendo y la mortalidad sigue siendo alta. Caribe: la actividad de influenza se mantuvo baja con predominio de influenza A(H3N2). El porcentaje de positividad de SARS-CoV-2 aumentó en Martinica, disminuyó en Haití y Dominica, y se mantuvo en los niveles observados en la semana anterior en Jamaica, Santa Lucía y Suriname. América Central: la actividad de la influenza se mantuvo baja. En Nicaragua, el porcentaje de positividad de influenza aumentó levemente pero se mantuvo en niveles de baja intensidad. La actividad del SARS-CoV-2 disminuyó en Costa Rica, El Salvador, Honduras, Nicaragua y Panamá. Andina: en general, la actividad de la influenza disminuyó con pocas detecciones de A(H3N2). En Bolivia, Ecuador y Perú, el porcentaje de positividad para influenza aumentó y estuvo en niveles de baja intensidad. En general, el porcentaje de positividad aumentó ligeramente, pero la actividad del SARS-CoV-2 disminuyó en Bolivia, Colombia, Ecuador y Perú. Se observó un aumento de la actividad del virus respiratorio sincitial en la subregión. Brasil y Cono Sur: la actividad de la influenza continuó en niveles bajos; sin embargo, se observó un mayor porcentaje de positividad de influenza en niveles de intensidad extraordinarios en Argentina; la actividad de influenza aumentó levemente en niveles de baja intensidad en Chile, Paraguay y Uruguay. La actividad del SARS-CoV-2 y el porcentaje de positividad disminuyeron en Argentina, Brasil, Chile y Uruguay. Se observó un aumento de la actividad del virus respiratorio sincitial en la subregión.
 
Subject
COVID-19; Influenza, Human; SARS-CoV-2; Betacoronavirus; International Health Regulations; Americas; Caribbean Region; Gripe Humana; Reglamento Sanitario Internacional; Américas; Región del Caribe
URI
https://iris.paho.org/handle/10665.2/55866
Collections
  • Influenza Situation Report: Regional Updates

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