Babesiosis Cases Increasing According to Medicare Databases Study

A study by Mikhail et al in Open Forum Infectious Diseases, Feb. 2021, from 2006 to 2017 showed 19,469 beneficiaries had babesiosis recorded, a substantial increase. The highest states by rates were Massachusetts (62), Rhode Island (61), Connecticut (51), New York (30), and New Jersey (19). States previously considered nonendemic saw increases: New Hampshire, Maine, Vermont, Pennsylvania, and Delaware.

See details of study and rates at state and county level