One Tick Bite Can Equal Two Infections
In New York state study, 1 in 10 of the bugs carried both Lyme disease and babesiosis.
If you're planning to spend quality time outdoors this summer, new research may give you another reason to guard against ticks.
In a New York state study, about one in 10 deer ticks were found to be harboring at least two harmful germs, and the tiny bloodsuckers could pass both infections to a human host through a single bite.
"A third of ticks around here are infected with the Lyme bacteria, and about a third of those are infected with something else, too," said expert. That means that about 10 percent of all ticks in her area carry not one but two potentially dangerous diseases.
"If you have been exposed to Lyme disease, there's a one in three chance that you've been exposed to something else at the same time. Those are pretty high odds," expert said.
The researcher has been collecting and testing thousands of deer ticks in Dutchess County in upstate New York, an area that has a lot of tick-borne disease.
The researcher was curious to know how many ticks have the potential to pass multiple infections at the same time. Found that ticks in that area are almost twice as likely as expected to carry two distinct germs -- the bacteria that causes Lyme disease and a tiny parasite that infects red blood cells, causing a less common illness called babesiosis.
On its own, babesiosis usually causes few problems for healthy people, according to the U.S. Centers for Disease Control and Prevention. But it can be life threatening to the elderly, or those who have compromised immune function.
When babesiosis and Lyme disease strike together, however, experts say it tends to compound the symptoms of both infections.
"People who have both infections have more symptoms acutely than people who have Lyme disease alone," explained expert. "They can experience headache, fever, chills, sweats, fatigue, muscle aches and pains -- a lot of symptoms".
It's not known exactly how often people get two infections from a single tick bite because doctors don't usually know to test for more than one problem. However, Krause conducted a study in 1996 in New England where he tested people with and without symptoms of tick-borne illness to try to capture the true rate of co-infection there.
The researchers found 240 had Lyme disease, [and] about 26 people had Lyme and babesiosis, so about 11 percent. That's a rate that closely mirrors the rates of co-infection Keesing found in upstate N.Y. ticks.
Doctors that practice in areas where tick-borne illnesses are common need to be more aware of the problem of co-infection -- especially if patients who come in with the symptoms of Lyme disease don't respond to treatment.
Common-sense measures can help prevent tick-borne infections in the first place.
Expert suggests avoiding places where the bugs like to live, such as wooded and grassy areas. He says avoidance is especially important for people who have weakened immune function.
"If you're in a wooded area, do tick checks. Wear long pants, a long-sleeved shirt, wear tick repellant," expert said.
And lastly, if you do happen to spot a tick clinging to your skin, don't freak out.
Most people who are bitten by ticks aren't going to develop Lyme disease or any of these other infections. Only about 3 percent of people bitten by deer ticks get Lyme disease."
Just be sure to carefully remove the tick as soon as you find it, to help minimize any risk of infection, expert said.
If the tick is pulled off before 36 hours of attachment, you're not going to get it.
Source: U.S. Dept. of Health & Human Services
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