While Covid is not directly responsible for the prolonged flu cases – caused by H3N2 variant of Influenza A virus – experts said that the negligible cases of flu in past three years reduced immunity and caused the surge.

from Times of India https://timesofindia.indiatimes.com/city/ahmedabad/lower-immunity-due-to-covid-leading-to-surge-in-h3n2-cases/articleshow/98790883.cms