Malaria, which spreads from the bite of an infected mosquito, has been found in three U.S. states.Photo:Getty

Close up shot of a mosquito sucking blood out a human finger

Getty

The CDC issueda health alerton Monday after a third state, Maryland, identified a case of malaria.

As with previous malaria cases in Florida and Texas, the disease was locally acquired — meaning, the patient contracted from the bite of an infected mosquito while at home, not during international travel — which prompted the alert.

According to the CDC, Florida has identified seven cases of malaria, while Texas had one. And while no new cases in those states have been identified since July, the Maryland case is “unrelated” to the previous ones.

The Maryland resident, from the National Capitol Region, was hospitalized, but is now recovering, the state’s Department of Healthsaid in a statement.

Bug repellant can help deter mosquitos from biting.Getty

A woman applies mosquito spray to her hands during hiking.

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

“Malaria was once common in the United States, including in Maryland, but we have not seen a case in Maryland that was not related to travel in over 40 years,” the Maryland Department of Health Secretary, Laura Herrera Scott saidin a statement. “We are taking this very seriously and will work with local and federal health officials to investigate this case.”

Most domestic malaria cases come from patients who caught the disease elsewhere and brought it back to the U.S. In April,a mom from Missouridied after catching the virus during a trip to West Africa, andGeorge Clooneycaught malaria in 2011after a trip to Sudan.

There areapproximately 2,000 cases of malariadiagnosed every year in the U.S. — and these new cases are the first known instances ofinfected mosquitos in 20 years, when eight people in Palm Beach County, Fla.,caught the virusin 2003.

Thereis a vaccine for malaria; however it is generallyrecommended for thosewho live in or are traveling to high-transmission areas.

And while the risk in the U.S. still remains low, control of the mosquito population is a concern, since malaria isn’t the only disease they spread.

The bite of an infected mosquito can transmit malaria and other diseases.Getty

Aedes aegypti or yellow fever mosquito sucking blood on skin,Macro close up show markings on its legs and a marking in the form of a lyre on the upper surface of its thorax

Symptoms of malaria vary from person to person, according to the CDC, and can include “fever, chills, headache, myalgias, and fatigue.”

The CDC recommends eliminating standing water on your property, which is where mosquitoes lay their eggs. “Once a week, empty and scrub, turn over, cover, or throw out any items that hold water like tires, buckets, planters, toys, pools, birdbaths, flowerpot saucers, or trash containers,”the CDC recommends.

source: people.com