Another mosquito-borne virus, Keystone, could pose a risk to people, particularly in Florida.

A confirmed human case of Keystone has recently been reported in the medical journal Clinical Infectious Diseases. Research author J. Glenn Morris suggested that Keystone cases might be "fairly common in North Florida", but he said it was the first case confirmed, probably because patients are rarely tested for the virus.

Here's what you should know about Keystone:

When was it found?

The virus was first discovered in the Tampa Bay area in 1964. Since then, animal cases (squirrels, raccoons and deer) have been found from Texas to Chesapeake Bay.

How do you catch it?

The virus is transmitted by mosquito bites, usually aedes atlanticus bites.

What are the symptoms?

Symptoms may include rash, mild fever and encephalitis, inflammation of the brain.

How many people have it?

Researchers at the University of Florida recently said A 16-year-old boy was the first human case of Keystone virus. The teenager did not suffer from swelling of the brain, but had fever and rashes. The case was identified because the doctors thought that the teenager might be suffering from the Zika virus during a known epidemic. The lab tests they collected for the Zika tests led them to discover Keystone. The Florida Department of Health said in the US TODAY that there was another recorded case of the virus in a young child from Sarasota in 1964.

Is it related to Zika?

The mosquito aedes atlanticus, cousin of the mosquito aedes aegypti that spreads in the Zika, is best known for its Keystone virus. Aedes mosquito infirmatus as well as other aedes and culex species have also known to carry the virus, said the Florida Department of Health.

Is there a cure?

There is no specific treatment plan for the virus in humans.

How can we prevent it?

The only known way to prevent the virus is to avoid mosquito bites. The Environmental Protection Agency recommends using an insect repellent, wearing long-sleeved shirts and pants, staying inside air-conditioned areas and using mosquito nets on windows and the doors to avoid bites. In addition to these tips, the Florida Department of Health also suggests draining stagnant water, such as rainwater collected in garbage cans or pool covers.

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