Experts are worried that dengue outbreak would remain a serious threat at least until October and they are not ruling out November.

Bangladesh can take a page out of Kolkata’s playbook in tackling the spread of dengue, which has already infected a record 17,183 people in the country.

When the country is grappling with a record number of dengue cases, different hospitals, clinics and diagnostic centres face a short supply of a kit that is needed to detect the fever at the early stage.

With the capital gripped by panic over dengue, experts said global warm-ing resulting from climate change is a key reason behind the rising num-ber of dengue cases.

The graphs look chilling. A red line sharply shooting north, crossing a purple, a yellow, a blue and a green. “That's what dengue looks like this year,” said Dr Ayesha Akhter, in-charge of disease control room at the directorate of health, pointing to the red line representing the number of patients this year.

After a few months of relative relief, a large part of Dhaka South City Corporation is again at risk of suffering a dengue outbreak, a survey found. Out of the 2,599 buildings and construction sites they visited to conduct the survey, officials found Aedes larvae in 938, thus raising the concern.