Watch out for gastro, and avoid contaminated food and water. This is the message doctors have sought to give to Mumbaikars citing rising cases of the stomach ailment, which is marked by diarrhoea, cramps, nausea, vomiting and fever. In the first three days of this month, the city has reported 40 cases of gastroenteritis. This apart, there were 39 malaria and 7 dengue cases between July 1 and July 3.

Mumbai had reported 3,110 gastro cases in 2021, while the first six months of 2022 had 2,946 cases. As monsoon advances, civic officials said, water-borne and vector-borne cases are also on the rise. Experts said self-hygiene is a must and people should keep an eye out that there should not be mosquito breeding sites in and outside their homes.