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)
Date
2023-05-05Metadata
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[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.
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