This 2007 photograph depicts the pathognomonic erythematous rash in the pattern of a bulls-eye, which manifested at the site of a tick bite on this Maryland womans posterior right upper arm, whod subsequently contracted Lyme disease.
Lyme disease patients who are diagnosed early, and receive proper antibiotic treatment, usually recover rapidly and completely. A key component of early diagnosis is recognition of the characteristic Lyme disease rash called
. This rash often manifests itself in a bull's-eye appearance, and is observed in about 80% of Lyme disease patients.
Lyme disease is caused by the bacterium erythema migrans Borrelia burgdorferi, and is transmitted to humans by the bite of infected blacklegged ticks. Typical symptoms include fever, headache, fatigue, and as illustrated here, the characteristic skin rash called . If left untreated, infection can spread to joints, the heart, and the nervous system. Note that there are a number of PHIL images related to this disease and its vectors. erythema migrans
It seems like were in trouble with Lyme disease in Quebec. In 2016 there were 179 cases reported, but this year is a different story.
In 2017, 295 cases of Lyme disease were reported. And that really does mean trouble because of the way that the disease affects humans. Those bitten were largely in the Eastern Townships and some in the Mon érégie, the Outaouais, the Laurentians, and in the Lanaudière and Mauricie.
Read also: WHO Issues Warning to Farmers Using Antibiotics on Healthy Animals
The deer ticks seem to be adapting to climate change. Mild winters aren’t affecting them as much, and in addition to that, the ticks are spreading and growing their territory.
Take a look at these numbers: in 2010, there were NO reported cases of deer tick bites or Lyme disease in Quebec.
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