Scientists say climate change appears to be a factor making Florida and other parts of the U.S. welcoming to non-native mosquitoes.

After two foxes tested positive for rabies in Tuktoyaktuk, N.W.T., health officials are advising anyone who has come in contact with a fox to contact the local health centre and report the incident immediately.

Cambodia has tested at least 12 people for the H5N1 strain of avian influenza, the health ministry said, after an 11-year-old girl died this week from the virus in the first known transmission to humans in the country in nearly a decade.