Dhaka’s two mayors, who step into the fifth year of their tenure this week, have largely failed in their fight against mosquitoes.

Mosquitoes have developed no new “hyper-reproductive capacity” but they are being farmed in Dhaka. When Dhaka-dwellers are finding it hard to cope with the growing mosquito menace, eleven organisations have been found helping the insect population to rise by the millions every day.

Residents of Dhaka South City Corporation area will have to face fine or imprisonment or both if any breeding ground of Aedes mosquitoes, responsible for the spread of dengue and chikungunya, is spotted at their homes.

US health authorities on Friday declare a public health emergency in Puerto Rico due to the outbreak of Zika, which has now infected more than 10,000 people.

New research gives the first evidence that Zika virus might cause a severe neurological disorder called Guillain-Barré syndrome.

Brazilian President Dilma Rousseff vows to "win the war" against the Zika virus, but some experts criticized her government's response and warned the Olympics could fuel the disease's spread.