Borreliosis: Seasonal Prevalence of Lyme Disease Spirochetes
The different agents of Borreliosis are worldwide distributed being transmitted by ixodid ticks (e.g., Ixodes ricinus). While most vertebrate hosts harbor for shorter or longer periods, the typically shaped bacteria (time-depending on the activity of their immune system), cattle, and the heterothermic edible dormouse (Glis glis) show a clear seasonable prevalence of these spirochetes. These hosts become infected by tick bites during their activity phases but suppress them soon in their body. Thus in a given biotope they help to clear/diminish the infectious pressure due to Borrelia stages. Matuschka’s and Richter’s group at different Berlin Research Institutes distinguished, however, two different methods, on how these holothermic respectively heterothermic hosts overcome their invaders.