Lyme disease is an illness that is caused by a spirochete bacterium, Borrelia burgdorferi, which is transmitted to humans through the bite of infected ticks. Ixodes dammini, which is the deer tick, is located in the northwest and Midwest region of the united states, are commonly known to infect humans. They are found in grassy areas (including lawns), and in brushy, shrubby and woodland sites, even on warm winter days. They prefer areas where some moisture is present. The tick has three life stages: larva, nymph and adult.
The nymphal stage appears to be responsible for most of Lyme disease cases. In the larval stage and the nymphal stage the ticks attach to a variety of small mammals, but prefer the white-tailed mouse, the main reservoir of Lyme disease. The adult tick prefers to feed on the white-tailed deer (hins the name deer tick). Each stage takes a single blood meal. They feed on a variety of warm-blooded animals including humans, dogs, cats, cows and horses. The entire life cycle requires three separate hosts and takes about two years to complete.
The bite is painless so most victims don’t know they have been bitten. Symptoms In about 50% of the cases a characteristic rash or lesion called Erythema margins is seen. It begins a few hours to a few weeks after the bite of an infected tick. The rash generally looks like an expanded red ring. It is often described as looking like a bull’s eye with alternating light and dark rings. However, it can vary from a reddish blotchy appearance to red throughout. And it also can be confused with poison ivy, spider or insect bite of ringworm.
At the same time that the rash develops, flu-like symptoms may occur with headache, sore throat, stiff neck, fever, muscle aches, fatigue and generally malaise. Some people develop the flu-like illness without getting a rash. If ignored, the early symptoms may disappear but more serious problems can develop months to years later. The later symptoms of Lyme disease can be quite severe and chronic. Muscle pain, and arthritis, usually in the large joints, neurological symptoms include meningitis, numbness, tingling, and burning sensation in the extremities, Bell palsy, severe pain, fatigue and depression.
The heart, eyes, respiratory and gastrointestinal problems can also develop. Symptoms are often intermittent lasting from a few days to several months and sometimes years. Chronic Lyme disease, because of its diverse symptoms, mimics many other diseases and can be difficult to diagnose. Outcomes Lyme disease is treated with antibiotics. Timely treatment increases chances of recovery and may lessen the severity of any later symptom in humans. The most effective treatment is prevention and whatever is recommended by your physician, and will depend on the stage of the disease.
Treatment for later stages of the disease is more difficult often requiring extended and repeated courses of antibiotic therapy. There are cases where treatment has failed and relapses were reported. Although, some deaths have been attributed to Lyme disease, it is not generally considered to be fatal. Bibliography “Lyme Disease”, By David W. Rahn, MD & Janine Evans, MD “Bull’s Eye- Unraveling The Medical Mystery of Lyme Disease”, By Johnathon A. Edlow MD Lyme disease . com.