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Regional Update, Influenza. Epidemiological Week 14 (19 April 2022)
Washington, D.C.; PAHO; 2022-04-21.
in English, Spanish | PAHO-IRIS | ID: phr-55917
Responsible library: US1.1
ABSTRACT
[WEEKLY SUMMARY]. North America Overall, influenza activity remained at low levels. SARS-CoV-2 activity continued to decline, and SARS-CoV-2 percent positivity remained at low levels. In Canada, influenza activity continued low, and SARS-CoV-2 activity slightly increased. In Mexico, influenza activity has decreased below the average of previous seasons, and the SARS-CoV-2 activity declined. In the United States, influenza activity increased at the national level, with Influenza A(H3N2) viruses predominating. SARS-CoV-2 activity, including mortality, continued to decline. Caribbean Influenza activity remained at low levels overall, with influenza A(H3N2) predominant. SARS-CoV-2 activity continued to decline overall. Central America Overall, influenza activity remained low and SARS-CoV-2 activity decreased in most countries. In Nicaragua, influenza percent positivity remained stable at low-intensity levels. In El Salvador, influenza activity remained above average at low-intensity levels. Andean Overall, influenza activity continued low with a few A(H3N2) detections. SARS-CoV-2 activity continued to decrease in most countries. In Peru, influenza percent positivity increased at low-intensity levels. RSV activity increased in Ecuador. Brazil and Southern Cone Overall, influenza activity with A(H3N2) predominance and SARS-CoV-2 activity continued to decrease in most countries. In Chile, influenza percent positivity was above the previous season’s average within the reference levels, and SARS-CoV-2 activity decreased. In Brazil, RSV activity increased. Global Influenza activity remained low, but activity has increased since February 2022, after an initial decrease in January 2022. In the temperate zones of the northern hemisphere, influenza activity increased or remained stable, except in East Asia, where detections decreased. Detections were mainly influenza A(H3N2) viruses and B/Victoria lineage viruses. In Europe, overall influenza activity has stabilized with influenza A(H3N2) predominant. Very little RSV activity was observed. In Central Asia, a single influenza B detection was reported in Kyrgyzstan. In East Asia, influenza activity with mainly influenza B/Victoria lineage detections appeared to decrease in China. ILI rate and pneumonia hospitalizations remained elevated in Mongolia. Elsewhere, influenza illness indicators and activity remained low. In Northern Africa, increasing influenza A(H3N2) detections were reported in Tunisia. In Western Asia, influenza activity was low across reporting countries, except Georgia, where increased influenza A(H3N2) detections were reported. In tropical Africa, influenza activity was reported mainly from Eastern Africa, with influenza A(H3N2) predominating, followed by influenza B/Victoria lineage viruses. In Southern Asia, influenza virus detections were at low levels with influenza A(H1N1)pdm09 and A(H3N2) viruses. In South-East Asia, influenza detections were at low levels except in Timor-Leste, with influenza A(H3N2) predominant. In the temperate zones of the southern hemisphere, influenza activity remained low overall. However, detections of influenza A viruses (with A(H3N2) predominant among the subtyped viruses) continued to be reported in South Africa. SARS-CoV-2 percent positivity from sentinel surveillance was around 10.0% in all regions during this reporting period. Percent positivity decreased in all regions except in the South-East Asian region, where it increased, and in the Eastern Mediterranean Region, where there was a slight uptick. Overall positivity from non-sentinel sites also showed a decreasing trend.
Subject(s)
Full text: Available Collection: Databases of international organizations Health context: SDG3 - Target 3.8 Achieve universal access to health / SDG3 - Health and Well-Being / SDG3 - Target 3.3 End transmission of communicable diseases / SDG3 - Target 3.4 Reduce premature mortality due to noncommunicable diseases Health problem: Governance Arrangements / Target 3.8 Achieve universal access to health / Target 3.3: End transmission of communicable diseases / COVID-19 / Pneumonia / Other Respiratory Diseases Database: PAHO-IRIS Main subject: Americas / Caribbean Region / Influenza, Human / International Health Regulations / Betacoronavirus / SARS-CoV-2 / COVID-19 Language: English / Spanish Year: 2022
Full text: Available Collection: Databases of international organizations Health context: SDG3 - Target 3.8 Achieve universal access to health / SDG3 - Health and Well-Being / SDG3 - Target 3.3 End transmission of communicable diseases / SDG3 - Target 3.4 Reduce premature mortality due to noncommunicable diseases Health problem: Governance Arrangements / Target 3.8 Achieve universal access to health / Target 3.3: End transmission of communicable diseases / COVID-19 / Pneumonia / Other Respiratory Diseases Database: PAHO-IRIS Main subject: Americas / Caribbean Region / Influenza, Human / International Health Regulations / Betacoronavirus / SARS-CoV-2 / COVID-19 Language: English / Spanish Year: 2022
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