The bacterium that causes Lyme disease is a master of disguise, changing its appearance to evade the immune system as it moves from the ticks that carry it to humans or animals.
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Articles on Deer tick
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How bad are ticks this year? An expert explains why tick-borne diseases are on the rise.
Reforestation and reintroduced deer populations are helping ticks expand their range. The parasites bring the bacteria that causes Lyme disease with them.
A tick expert explains his work trying to understand why the abundance of the parasites vary so much from location to location and year to year.
Ticks are generally inactive in the winter and start to look for their next meal as temperatures warm up. But as winters warm, every season may become tick season.
