CDC advises you may need multiple Lyme disease tests after a tick bite

The CDC is telling ABC News that the public should be cautious with false-negative results from Lyme disease tests after getting a tick bite.
2:19 | 06/30/17

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Transcript for CDC advises you may need multiple Lyme disease tests after a tick bite
This summer expected to be one of the worst six seasons ever states all across the country bracing for more cases of Lyme Disease disease another CBC. Is warning that one test may not be enough for if you get a tick bite. Maybe she can say to him because the morning down. Good morning to you also helping you the telltale sign for Lyme Disease is a bullseye rash but for many people. There's no sign of it on their skin Nadal and many get no sign of it in several blood tests. It's a big problem because a key to efficient treatment is early detection. They're small and they're dangerous for a while fixed can be hard to spot soak in the lime disease they often carry Jill Whitner knows this firsthand. I happen to catch a glimpse an angled mirror out of a bullseye rash on the back of my right arm. I didn't know what a wise at the time that it took a picture on it and soon after we got home I contacted the doctor asks roughly 300000. People are diagnosed with this disease every year. And that number is on the rise. I was so weak I couldn't lock I couldn't chew my food I could ends. Dressed myself some of the time I couldn't get off the couch and walk from one room to the other. On I had problems. Just finding words ahead cognitive issues. Finally after about seven or eight tests they'll line test came back positive. Right now test for Lyme Disease don't always detect the disease in the early stage. In the first three weeks of infection. The test only detects line 29 to 40% of the time. Now the CDC tells ABC news researchers are trying to develop a new test to better diagnose the infection early on Lyme Disease testing can be negative in the first month following its action. And is because we're really order the human immune response to knotts in response to the action. When diagnosed and treated quickly the infection is easy to get rid of but if it's left untreated it can cause debilitating effects from severe arthritis to short term memory months. Official is still having symptoms. Almond a test comes back negative it's very very important is that communicate. Health care provider. And the CDC warns that because it usually takes weeks for line to test positive doctors who suspect lyme. Should prescribe antibiotics even if the test is negative and Robin that's not something we hear often. Take antibiotics that you might not need so that just shows how serious this since it does Diane think he's so much.

This transcript has been automatically generated and may not be 100% accurate.

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