Rare But Dangerous Tick-Borne Diseases Doubled In Mass. Last Year

Surely you know that Lyme Disease is endemic all across Massachusetts. Surely you didn’t need any further incentive to guard against tick bites — to wear insect repellent, do tick checks after being outdoors, and more. But just in case, I’m passing along some worrisome statistics I just learned from Dr. Catherine Brown, the state public health veterinarian, about the rise of two other tick-borne diseases. They’re both far rarer than Lyme Disease but don’t relax; they’re also both potentially fatal.

They’re called babesiosis and anaplasmosis, and confirmed cases of both effectively doubled from the 2010 numbers to 2011. They still remain extremely uncommon. Even after the doubling, there were 191 confirmed Massachusetts cases of babesiosis in 2011, and 140 confirmed cases of anaplasmosis. But when numbers rise so dramatically, Dr. Brown said, “It makes us notice.”

Some pointers: Unlike Lyme Disease, which crops up across the whole state, these two rarer diseases are more geographically confined, Dr. Brown said. Anaplasmosis tends to appear on the Cape and islands, in the Metro West area and in southern Berkshire County. Babesiosis, similarly, tends to strike on the Cape and islands and in Metro West. Cases spike in summertime, and tend to occur in older people.

babesiosis map

As with Lyme Disease, symptoms tend to include fever and fatigue, but Lyme symptoms may be mild, whereas with the two rarer diseases, Dr. Brown said, “you actually get much sicker and know something is seriously wrong.” She has no exact numbers on deaths, but there have been “a few reports of fatalities,” she said.

For more information, check the Massachusetts Department of Public Health, including this fact sheet on babesioisis and this overview of tick-borne diseases.

Click to enlarge. Source: State Department of Public Health

Click to enlarge. Source: State Department of Public Health

  • Alexander Davis

    Of course these diseases, spread by the deer tick, will eventually be all over the state just as Lyme disease is.  The only answer is getting rid of the deer who drop off all these egg-laying adult ticks.  Although mice harbor the tick larvae, they can’t host an egg-laying adult.  This epidemic came with an epidemic of deer, and the result is that we can no longer safely enjoy the outdoors.  It’s ridiculous. 

  • Deanmitra

    Which types of ticks carry them? Deer or dog? G

  • http://www.facebook.com/NickMpernice Nick Pernice

    I think it is also important to note diagnosis for lyme and tick borne illness should be identified primarily on a clinical basis, in addition to a positive test result. In many cases persons can have a disease from a tick bite and NOT test positive for it. In any case the precautionary principle should be applied, and if you show symptoms after being bite, seek medical assistance. The longer one waits, the longer the treatment, and the the further the decrease in eradication of the disease. Some doctors may be hesitant to initiate treatment without hard test results, but a negative test should in not case rule out a tick borne disease.

    • http://pulse.yahoo.com/_LLH7SFRBBDZ54YLFVP6POB6XAI ANNA

       I agree, Nick. The treatment for Lyme disease is only anti-biotics, like doxycycline. The longer the disease goes untreated the more damage it does. So why wait for a positive lyme titre when the treatment is so simple? I had Lyme 15 years ago with no bulls-eye rash and no positive blood test results. I did, however, pull a tick off me and was symptomatic within 48 hours. It was terrible. After 6 weeks of suffering and one doctor telling me I had the flu, I demanded the doxycycline and took it for one month. I haven’t had any problems since and am skeptical of any doctor who is reluctant to treat this seriously at the beginning with a simple round of anti-biotics. Why is that, hmmm?

  • Ccadogan12

    What about Ehrlichia (sp?)?  I was diagnosed with that last summer and I have never been so sick in my life!  I had a fever and severe headache every day for weeks and the doctor just said it was a virus, until it lasted so long I knew he was wrong!  I had a blood test and it took them 2 weeks to get it back with the diagnosis!  Since then I’m afraid to go out in the yard!