WESTPORT — West Nile virus has been detected in a mosquito trapped in Westport, Health Director Mark Cooper reported Thursday.

Data from the state’s Agricultural Experiment Station show that at least one mosquito, among more than 1,600 trapped at a North Avenue site over the last week, was carrying the virus. The state maintains another local trapping station at Sherwood Island State Park.

The virus has been found in growing numbers of mosquitoes throughout the state over the last few weeks, driven by the hot and wet weather that promotes breeding among infected insects.

No human cases of West Nile virus have been reported yet in Connecticut.

“There is no reason to panic, but precautions should be exercised to avoid being bitten by mosquitos,” Cooper said in the statement. Positive mosquito breeding conditions are expected to continue until the season’s first frost.

The infected mosquito trapped in Westport, and most of the others around the state, are the culex pipiens variety which, according to Cooper, predominately feed on birds, but given the opportunity, also will bite humans.

The Aspetuck Health District issued the following guidelines to help ward off mosquito bites and to mitigate the insects’ spread:

• Particular caution is warranted at dusk and dawn when mosquitoes are most active.

• Wear shoes, socks, long pants and long-sleeved shirts to maximize protection. Clothing material should be tightly woven.

• Use mosquito netting when sleeping outdoors.

• Outdoors, use of CDC-recommended mosquito repellents, containing DEET, picaridin, oil of lemon eucalyptus, IR3535 or 2-Undecanone, and apply according to directions.

• When applying DEET, use the lowest concentration effective for the time spent outdoors (for example, 6 percent lasts approximately two hours and 20 percent for four hours) and wash treated skin when returning indoors. Do not apply under clothing, to wounds or irritated skin, the hands of children, or to infants less than two months old.

• Remove outdoor objects that can hold water and become a breeding place for mosquitoes.

• Clean house gutters that could retain water.

• Empty wading pools and bird baths every few days.

• Chlorinate swimming pools regularly.

• Make sure covers for grills, boats, pools and other equipment do not collect water.

• Ensure that door and window screens fit tightly to prevent mosquitoes gaining access to indoors.

For more information, check the state’s mosquito management program’s website.