Various Flu and RSV Detections Confirmed

The World Health Organization (WHO) recently published Influenza Update N° 443, confirming after January 2023, worldwide activity increased with a higher proportion of influenza A(H1N1)pdm09 and B virus detections until a peak around week #10, after which detections decreased.

Currently, there are sporadic reports of the Southern Hemisphere flu season causing infections in Brazil and Peru.

And as of April 17, 2023, the WHO reported Respiratory Syncytial Virus (RSV) activity was generally low or decreasing except in Australia, New Zealand, South Africa, and a few countries in the Region of the Americas.

In South Africa, the RSV detection rate among children under five years of age in pneumonia surveillance reached a very high level.

And RSV remained elevated in Guatemala and Mexico and increased in the Plurinational State of Bolivia.

As of April 20, 2023, the U.S. FDA has not authorized any RSV vaccine candidate.

However, various countries have approved RSV monoclonal antibody therapies.