PROVIDENCE, RI — PROVIDENCE – The Department of Environmental Management (DEM) reports West Nile Virus has established seasonal activity in the area including Rhode Island, Massachusetts and Connecticut.
Seasonal activity, according to science publisher Elsevier, is peak cases of the disease during a particular period of the calendar year, or one that recurs regularly.
RIDOH State Health Laboratories have confirmed one new positive finding of West Nile Virus (WNV) collected Aug. 30 from a trap in Johnston. DEM collected 82 pools (samples) of mosquitoes from 23 traps set statewide Aug. 26-30. Results are pending for mosquitoes trapped Aug. 31- Sept. 9. To date, the state has confirmed five positive WNV findings, according to the DEM.
Positive findings in Connecticut, Massachusetts, and Rhode Island indicate that WNV has established seasonal activity in our area. WNV will become more prevalent as the season progresses, so DEM and the Rhode Island Department of Health (RIDOH) advise residents to reduce their exposure to mosquitoes until the first hard frost.
Personal protection is the first line of defense against mosquitoes that may carry WNV, EEE, or other diseases – and the most effective way to avoid infection. With WNV established in the state, residents are reminded to eliminate mosquito breeding grounds and prevent being bitten, whenever possible. The following precautions are advised.
Protect yourself from West Nile Virus
- Put screens on windows and doors. Fix screens that are loose or have holes.
- At sunrise and sundown (when mosquitoes that carry EEE are most active), consider rescheduling outdoor activities that occur during evening or early morning. If you must be outside, wear long-sleeved shirts and long pants and use bug spray.
- Use EPA-approved bug spray with one of the following active ingredients: DEET (20-30% strength); picaridin, IR3535; and oil of lemon eucalyptus or paramenthane. Always read the label and follow all directions and precautions.
- Do not use bug spray with DEET on infants under two months of age. Children should be careful not to rub their eyes after bug spray has been applied on their skin. Wash children’s hands with soap and water to remove any bug spray when they return indoors.
- Put mosquito netting over playpens and baby carriages.
Remove mosquito breeding grounds
- Remove items around your house and yard that collect water. Just one cup of water can produce hundreds of mosquitoes; an unused tire containing water can produce thousands of mosquitoes.
- Clean your gutters and downspouts so that they can drain properly.
- Remove any water from unused swimming pools, wading pools, boats, planters, trash and recycling bins, tires, and anything else that collects water, and cover them.
- Remove or treat any shallow water that can accumulate on top of a pool cover. Larvicide treatments, such as Mosquito Dunks can be applied to kill immature mosquitoes. This environmentally friendly product is available at many hardware and garden stores and online.
- Clean and change water in birdbaths at least once a week.
Best anti-mosquito practices for horse owners
Horses are particularly susceptible to WNV and EEE. Horse owners are advised to vaccinate their animals early in the season and practice the following:
- Remove or cover areas where standing water can collect.
- Avoid putting animals outside at dawn, dusk, or during the night when mosquitoes are most active.
- Insect-proof facilities where possible and use approved repellents frequently.
- Monitor animals for symptoms of fever and/or neurological signs (such as stumbling, moodiness, loss of appetite) and report all suspicious cases to a veterinarian immediately. If you are unsure if your horse is properly vaccinated, you should consult with your veterinarian.
Visit health.ri.gov/mosquito for additional mosquito prevention tips, videos, and local data. DEM and RIDOH also remind Rhode Islanders to take precautions to avoid mosquito bites when traveling to Zika-affected countries.
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