Table 1. Microorganisms and diseases associated with black-legged ticks.

No.	Name of Microorganism	Type of Microorganism	Disease
1	Anaplasma phagocytophilum	Bacteria	Human granulocytic anaplasmosis
2	Babesia microti	Protozoan parasite	Babesiosis
3	Borrelia burgdorferi	Bacteria (Spirochete)	Lyme disease
4	Borrelia miyamotoi	Bacteria (Spirochete)	Borrelia miyamotoi disease
5	Bourbon virus	Virus	Bourbon virus disease
6	Powassan virus	Virus	Powassan disease/viral encephalitis
7	Ehrlichia muris eauclarensis	Bacteria	Ehrlichiosis
8	Borrelia mayonii	Bacteria	Borrelia mayonii disease