File photo of the dengue and chikungunya ward at Aruna Asaf Ali Hospital in New Delhi.

Neighbourhood News Desk/Avi Arya: Scientists warn that this year could see more chikungunya cases, courtesy the medical equivalent of the so-called base effect, where the previous year’s data affects this year’s. While there is no cause for alarm yet, given the weather conditions, efforts to contain the breeding of the mosquitoes responsible for transmitting both diseases should have begun by now, if not earlier.

Till 3 March, Delhi hospitals tracked by the South Delhi Municipal Corporation reported 15 cases of dengue, five more than last year when the mosquito-borne disease infected 9,271 people and killed 10.