Gurugram, Sept. 4 -- The onset of the annual flu season, categorised by a peak in prevalence of flu -- caused by strains of the influenza virus which begin to rapidly circulate due to seasonal changes in weather and temperature -- has resulted in a larger number of people seeking tests for Covid-19 due to overlapping symptoms, health department officials said. The typical season for flu in Gurugram, they added, lasts from July to October every year....