You can now read 10 articles in a month for free on BostonGlobe.com. Read as much as you want anywhere and anytime for just 99¢.

The Boston Globe

Metro

Number of ailments from deer ticks on rise

Lyme is not the only disease deer ticks can transmit. Scientists now know of four other pathogens the tick can transmit to humans. The oganisms are less prevalent that Lyme, but in some cases can make people much sicker.

Babesiosis, caused by microscopic parasites that infect red blood cells, can result in a range of symptoms, including fever, aches, chills, and in rare cases, death in the elderly or those with a weakened immune system or without a spleen. It is often treated using antimalaria-like drugs.

Loading comments...

You have reached the limit of 10 free articles in a month

Stay informed with unlimited access to Boston’s trusted news source.

  • High-quality journalism from the region’s largest newsroom
  • Convenient access across all of your devices
  • Today’s Headlines daily newsletter
  • Subscriber-only access to exclusive offers, events, contests, eBooks, and more
  • Less than 25¢ a week