<unk>  is an emerging infectious<unk>  caused by spirochete bacteria of the genus Borrelia. The vector of infection is typically the bite of an infected black-legged or deer tick(I. scapularis), but other carriers (including other ticks in the genus Ixodes) have been implicated. Borrelia burgdorferi is the predominant cause of<unk>  in the US and Borrelia afzelii and Borrelia garinii are the predominant causes in Europe.
The<unk> 's presentation varies widely, and may include rash and flu-like symptoms in its initial stage, then musculoskeletal, arthritic, neurologic, psychiatric, and cardiac manifestations. In a majority of cases, symptoms can be eliminated with antibiotics, especially if treatment begins early in the course of illness. Late or inadequate treatment often leads to "late stage"<unk>  that is disabling and difficult to treat.
Lyme disease
Cat scratch fever
Mumps
Rabies
Rickettsialpox
Scarlet fever
Chickenpox
Measles