According to the World Health Organization (WHO), approximately 80 per cent of the population globally is at risk of contracting one or more vector-borne diseases. These infections, caused by parasites, bacteria or viruses, account for 17 per cent of all infectious diseases, causing more than 7 lakh deaths annually.

While vector-borne diseases can strike any time of the year, the risk of contracting some of these infections such as dengue, malaria and chikungunya, increases during the monsoon season.

A recent report by the Brihanmumbai Municipal Corporation (BMC) revealed a rise in monsoon-related diseases in June 2025, compared to the same period last year. While 341 malaria cases were registered in the city from 1-14 June this year, as compared to 443 cases in the entire month in 2024, the number of dengue cases in the first half of June this year was 48, as compared to total 93 cases in June 2024. The number of chikungunya cases rose from zero in June 2024 to four in the first half of June this year.