The Southern Nevada Health District says the first West Nile virus-positive mosquitoes of the season were found in the 89005 zip code, which is Boulder City in Clark County.

They said the first human case of West Nile virus in Southern Nevada was reported in April. The person who contracted a more serious form of the illness has recovered, Southern Nevada Health District says.

Southern Nevada Health District is warning residents that the most common spread of the virus is through bites from infected mosquitoes that have acquired the virus by feeding on infected birds.

They said many people who are infected will have no symptoms or very mild clinical symptoms, including fever, headache, body aches, nausea, vomiting and sometimes swollen lymph glads or a skin rash on the chest, stomach and back.

They said in some cases, the virus can cause severe neurological illness and even death.

The Southern Nevada Health District recommends the following precautions:

  • Use Environmental Protection Agency (EPA)-registered insect repellents containing DEET, Picaridin, IR3535, Oil of lemon eucalyptus (OLE), or 2-undecanone.
  • Wear pants and long-sleeved shirts to reduce mosquito exposure when outdoors.
  • Eliminate areas of standing water around your home, including non-circulating ponds, “green” swimming pools, and accumulated sprinkler runoff, which support mosquito breeding.

For more information, visit this link here.

(The Southern Nevada Health District contributed to this report).