Eighty percent of these human cases resulted from the bites of the nymph-stage ticks from May through August. So it is the intermediate, poppy-seed sized form of the tick most likely to transmit the disease to humans. In previous years physicians have had a difficult time positively identifying Lyme Disease in humans. With this new method, utilizing spinal or joint fluid, physicians can now say with greater certainty whether or not a patient has Lyme Disease. The PCR test will help to establish the truth of such pronouncements.
Swollen knees are a common symptom.
Vaccinations for Lyme Disease in humans are available but are not in widespread use at this time. There are three Lyme vaccines approved for use in dogs. As with any vaccine there are a number of variables that can impact each individual's response to a vaccine. Think of vaccination for Lyme Disease as one tool you can use to decrease your dog's chances of contracting the disease. For helpful information on the advisability of vaccinating your dog, contact a vaccine manufacturer or discuss this disease with your veterinarian.