Flu Season 2025 South Africa 2025. Since the start of the influenza season in week 17 (week starting 22 april 2025), there has been a steady increase in the number of influenza cases from the pneumonia (hospitalised cases) surveillance. Stay informed with the latest update on the 2025 influenza season in south africa.
April 14, 2023 — a new cdc study published in the lancet global health looked at 10 years of laboratory flu data from 25 african countries in order to provide new, policy. As expected during the winter months, influenza transmission levels reached moderate to high intensity.