2 Your Health: What to Know about West Nile Virus

With more cases of West Nile virus being reported in the US, some may wonder how it spreads and what can be done to stop it.

“There are specific mosquitoes that carry the West Nile virus. Not every mosquito carries it, so getting bitten by a mosquito doesn’t mean you’re going to get West Nile virus,” said Lyssette Cardona, MD, infectious disease specialist. “But the mosquitoes that have been infected through a bird that has it, then they carry it in their belly, and when they bite you, they can transmit it to humans.”

Dr. Cardona said that in most cases, people who become infected with West Nile virus do not show any symptoms.

However, those who do may get a fever, headache, body aches, vomiting, diarrhea, or a rash.

In rare instances, West Nile can be deadly.

Dr. Cardona said that, as of right now, there is no specific medication to treat it, nor is there any vaccination available.

The virus is typically treated through supportive care.

“For West Nile and most mosquito-related illnesses, the best protection is to prevent mosquito bites. And so, at a personal level, if you’re going to travel, or if you’re around areas where there may be a lot of exposure to mosquitoes, just make sure you’re using the repellents that are safe for you and any specific netting and things if you’re camping,” said Dr. Cadona.

According to the CDC, West Nile virus is the leading cause of mosquito-borne disease in the continental United States.

Dr. Cordona said that if you are concerned you may have been exposed, it’s best to consult your physician. There is a blood test they can do to confirm.

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