In addition to flu-like symptoms such as fever, chills, and malaise, H3N2 cases are also complaining of digestive problems such as vomiting and diarrhea, sometimes resulting in hospitalization. Experts warn that diarrhea can become a serious issue if it persists for more than 24 hours, leading to dehydration. While this is a typical flu season, some doctors reported seeing such cases in the first week of December last year. “While the flu (due to its variants such as influenza A and H3N2) is generally not serious, we are seeing an increase in severity primarily due to the influenza virus being protected over the past three years. Masks, social distancing and hand sanitizing People did not get the virus due to COVID-19 proper behavior including hygiene. When we get infected with virus every year, it causes formation of antibodies and adds to the collective immunity. By not getting infected for 2-3 years A situation has arisen where we do not have antibodies to the virus,” said MV Rao, general practitioner.