Lyme disease is very common in the U.S. It mainly occurs in the northeast and upper Midwest, and is transmitted by ticks. But lately there's been an increase in the number of people infected with the disease - about 30,000 cases reported each year. Now scientists are looking at whether weather may be the culprit.
Lyme disease is very common in the U.S. It mainly occurs in the northeast and upper Midwest, and is transmitted by ticks. But lately there's been an increase in the number of people infected with the disease - about 30,000 cases reported each year. Now scientists are looking at whether weather may be the culprit.
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