During the 1850s, soldiers returning from the Crimean War introduced plasmodium, the malaria-causing parasite, to Cork’s mosquito population.  Oliver Cromwell may have died of ‘Cork fever’, contracted during his visit to Ireland

Cleaning and bedding experts detail exactly how often your sheets should be washed in the warmer months

Top health officials expressed heightened concern about the threat posed to the US by the zika virus, saying the mosquito that spreads it is now present in about 30 states and hundreds of thousands of infections could appear in Puerto Rico.