RIVERSIDE COUNTY, Calif. (FOX 11) - Health officials reported Tuesday the first confirmed case of Zika virus in Riverside County: A 50-year-old man who recently traveled to the Caribbean, officials said.
The infection was not locally acquired, officials said. The patient, who lives in southwest Riverside County, likely became infected during his travels to the Dominican Republic, where Zika-infected mosquitoes are present.
According to health officials, the patient is expected to fully recover.
There have been no locally acquired Zika cases in the continental United States, officials added.
"While Riverside County is one of the last counties in Southern California to have a confirmed case, we always knew it would happen eventually," County Public Health Officer Dr. Cameron Kaiser said. "We will continue working with our partners in health care and vector control to protect our residents, especially pregnant women and the unborn, who are most at risk."
Zika typically is transmitted to people by a bite from an infected mosquito, but it also can be spread from mother to unborn child, through sexual contact and through blood transfusions.
The mosquito that carries Zika has been found in portions of Riverside County, including Riverside, the Coachella Valley, Corona-Norco and parts of the San Jacinto Valley, officials said.
About 80 percent of people who are infected with Zika do not have any symptoms. An illness may develop in 20 percent of infected people within three to seven days after a bite from an infected mosquito.
Serious complications are extremely rare for the patient, but Zika has been linked to abnormal brain development in the babies of infected pregnant women. Symptoms generally are mild and can last for several days to a week. Common symptoms include fever, rash, joint pain, conjunctivitis (red eyes), muscle pain or headache.
There is no medication to treat Zika and no vaccine is currently available.
The best way to prevent Zika is to avoid travel to areas where active transmission is present. Zika is only one of several diseases that can be spread by mosquitoes. To protect yourself from mosquito bites, health officials advise to consider the following:
-Wear long-sleeved shirts, long pants, socks, and shoes.
-Use EPA-registered insect repellants and apply according to the label instructions.
-Stay and sleep in places with air conditioning and screened windows.
-Prevent standing water in your yard by disposing of discarded tires, cans, plastic containers; draining standing water from pool or hot tub covers; turning over plastic wading pools and wheelbarrows when not in use; keeping drains, ditches and culverts clean of trash and weeds so water will drain properly; and cleaning gutters to ensure they drain properly.
-If you are returning from a Zika area, which includes the Caribbean, most of Central and South America and some Pacific islands, wear insect repellant both there and also for at least three weeks when you return here to reduce the risk of spreading it locally.
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