A sixth Nassau County resident has tested positive for West Nile virus, the county's health department said Friday.

The most recent case is that of an 80-year-old resident of the Town of Hempstead who was hospitalized and is now home recovering, according to the Nassau health department.

One case has been reported in Suffolk County so far this year. There have been no deaths on Long Island.

Some mosquito bites can transmit West Nile to humans, with mosquitoes picking up the virus by feeding on infected birds. In some cases, the virus causes serious neurological illnesses that can lead to health conditions or death.

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Four new mosquito samples have tested positive for West Nile virus in Suffolk, making the total now 196 there, county health officials reported Friday.

The new samples, all Culex pipiens-restuans, were collected Sept. 22 to Sept. 23 in North Babylon, Patchogue, Selden and Setauket.

Nassau County has reported 60 positive mosquito samples as of Friday, according to the county's health department.

Nassau had four reported human cases of West Nile last year, while Suffolk reported one case. There were no deaths last year in either county.

Residents are advised to eliminate stagnant water where mosquitoes breed in and around their homes; to minimize outdoor activities and cover their skin in the evening and night when mosquitoes are most active; and to use mosquito repellent outdoors.