Tick-borne rickettsioses


  • Tick-borne rickettsiosis

Nature

These diseases in humans are caused by infective organisms transmitted in the bite of a tick. Humans are dead-end or tangential hosts for tick-borne viruses and do not play a significant role in their natural maintenance and dissemination. The vertebrate host spectrum varies for each virus; generally, the host population comprises particular species of smaller vertebrates with high population-replacement rates, such as birds or rodents, but larger mammals also can become infected.


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