Regional Update, Influenza. Epidemiological Week 31 (17 August 2021)

ABSTRACT

North America Influenza activity remained low. In Mexico and the United States, SARS-CoV-2 activity continued elevated and increasing. Caribbean Influenza activity remained low. In Belize, SARS-CoV-2 activity continued at moderate levels and increasing; RSV detections continue to increase in the country. In Puerto Rico and Saint Lucia, SARS-CoV-2 activity continued to increase. Central America Influenza activity remained low. Overall, SARS-CoV-2 activity continued at moderate levels in the subregion. In Nicaragua, SARS-CoV-2 activity continued elevated and increasing. Andean Influenza activity remained low. Overall, SARS-CoV-2 activity continued at moderate levels but decreasing. Brazil and Southern Cone Influenza activity remained low. Overall, SARS-CoV-2 activity continued at moderate levels but decreasing. In Argentina and Uruguay RSV activity remained elevated and increasing. Global Despite continued or even increased testing for influenza in some countries, influenza activity remained at lower levels than expected for this time of the year. In the temperate zones of the southern and northern hemispheres, influenza activity remained at inter-seasonal levels. In tropical Africa, influenza detections were reported in some countries in Western and Eastern Africa. In Southern Asia, influenza detections were reported from Bangladesh, India, and Nepal. In South East Asia, one detection of Influenza A(H3N2) was reported from the Philippines. Worldwide, influenza B detections accounted for most of the low number of detections reported.