TY - JOUR AU - Bloch, Evan AU - Day, Jonathan AU - Krause, Peter AU - Kjemtrup, Anne AU - O’Brien, Sheila AU - Tobian, Aaron A.R. AU - Goel, Ruchika T1 - Epidemiology of Hospitalized Patients with Babesiosis, United States, 2010–2016 T2 - Emerging Infectious Disease journal PY - 2022 VL - 28 IS - 2 SP - 354 SN - 1080-6059 AB - Babesia spp. are tickborne parasites that cause the clinical infection babesiosis, which has an increasing incidence in the United States. We performed an analysis of hospitalizations in the United States during 2010–2016 in which babesiosis was listed as a diagnosis. We used the National Inpatient Sample database to characterize the epidemiology of Babesia–associated admissions, reflecting severe Babesia-related disease. Over a 7-year period, a total of 7,818 hospitalizations listed babesiosis as a primary or secondary admitting diagnosis. Hospitalizations were seasonal (71.2% occurred during June–August) and situated overwhelmingly in the Northeast and Midwest. The patients were predominantly male and of advanced age, which is consistent with the expected epidemiology. Despite a higher severity of illness in more than (58.5%), the mortality rate was low (1.6%). Comparison with state reporting data suggests that the number of hospitalized persons with babesiosis increased modestly during the observation period. KW - babesiosis KW - Babesia KW - epidemiology KW - United States KW - hospitalization KW - parasites KW - vector-borne infections KW - ticks DO - 10.3201/eid2802.210213 UR - https://wwwnc.cdc.gov/eid/article/28/2/21-0213_article ER - End of Reference