Statistical data for the number of Zika and West Nile virus cases reported by the county this year so far, is not yet available, but health officials warn, following times of heavy rain and flooding, the number of cases generally spike.
West Nile virus is an infectious disease that was first introduced to the United States in 1999.
The city, in partnership with the Suffolk County Mosquito Control Project, has placed larvicide in catch basins and wetlands in an effort to reduce the mosquito population, officials said.
Defend: When outdoors, use an insect repellent containing DEET, picaridin, oil of lemon eucalyptus, 2-undecanone, or IR3535 and reapply according to label directions.
"Dress: Wear long sleeves, pants, and closed toe shoes when outdoors to cover your skin".
The department on Thursday told the city that collections from Worcester and Auburn carried West Nile Virus.
The county's health department says the tests were done on mosquitoes collected June 28 in Highland Park.
"Diseases like Zika and West Nile remain threats in Texas and we need everyone to do their part to protect themselves, their families and their communities", said Hellerstedt. Another sample tested positive for West Nile in Mill Creek Township, Lycoming County also. Since 2002, there have been 64 confirmed cases in humans in the county - two of which were fatal.
"With two mosquito-borne viruses now active in the Coachella Valley, it is more important than ever for people to protect themselves from mosquito bites, " district spokeswoman Jill Oviatt said. Just like in humans, the birds get infected through the bite of an infected mosquito and may pass it onto other mosquitoes that bite them. In some individuals, severe illness including meningitis or encephalitis, or even death, can occur. Although a person's chances of getting sick are small, those 50 and older are at highest risk for serious illness.