BALTIMORE (AP) - Public health officials say 13 cases of West Nile virus in humans have been confirmed in Maryland this year.
The Department of Health and Mental Hygiene says that number is more than twice the number of West Nile virus cases reported in all of 2014.
The mosquito-borne virus also has been detected in mosquitoes and horses in the state this year.
The department reminds residents to take precautions to avoid infection, including avoiding outdoor activities at dawn and dusk, when mosquitoes are most active; wearing long pants, long-sleeved shirts and hats; and using insect repellant.
While most people who contract West Nile virus will have no symptoms, health officials warn that people over age 60 have the greatest risk of developing severe disease, as do people whose immunity systems have been compromised.
Delaware
DOVER, Del. (AP) - Delaware health officials say four people in the state have tested positive for West Nile virus.
The Division of Public Health announced Tuesday that three of the cases reported last month were in New Castle County and one was in Kent County. Officials say the people reported no symptoms, but the virus was found as part of bloodwork for a routine medical procedure.
While most people infected with the mosquito-borne virus won't become ill, some - fewer than 20 percent - will develop symptoms such as a fever, headache, a rash or swollen lymph glands. The virus can also lead to potentially fatal encephalitis or meningitis.
There were no reported human cases in Delaware last year. But there were three cases in 2013 and nine in 2012 with one fatality.
