THIRUVANANTHAPURAM: Health experts have warned that Kerala might witness the single-day COVID tally rising to a whopping 5000 cases by the first week of September. With the COVID cases in the state doubling within two weeks and with the increase in the number of COVID tests, the COVID tally is all set to increase. Unless the virus transmission comes under control, the single-day tally can reach as high as 10,000 cases per day. The preventive measures taken by the health department for the next two weeks will be very crucial.