![]() ![]() 22 outbreaks occurred in hemodialysis settings, with 104 outbreak-associated cases of HCV and 3,134 persons notified for screening.16 outbreaks occurred in outpatient or long-term care facilities (including the two outbreaks of both HBV and HCV also listed above), with 134 outbreak-associated cases of HCV and >80,293 persons notified for screening.Hepatitis C (43 total outbreaks including two of both HBV and HCV, 328 outbreak-associated cases, >112,406 at-risk persons notified for screening): 6 outbreaks occurred in other settings, one each at: an outpatient cardiology clinic, a free dental clinic in school gymnasium, an outpatient oncology clinic, a hospital surgery service, and two at pain remediation clinics (one outbreak of HBV and one with both HBV and HCV), with 50 outbreak-associated cases of HBV and 11,567 persons at-risk persons notified for screening.79% (15/19) of the outbreaks were associated with infection control breaks during assisted monitoring of blood glucose (AMBG).19 outbreaks occurred in long-term care facilities, with at least 133 outbreak-associated cases of HBV and approximately 1,679 at-risk persons notified for screening.Hepatitis B (total 25 outbreaks including two of both HBV and HCV, 183 outbreak-associated cases, 13,246 persons notified for screening): SummaryĦ6 outbreaks (two or more cases) of viral hepatitis related to health care reported to CDC during 2008-2019 of these, 62 (94%) occurred in non-hospital settings. Note: this page is available in printable form pdf icon. Resources for prevention include updated hepatitis B immunization guidelines, and infection control guidelines and resources. ![]() Practical guidance on detecting and investigating such outbreaks may be found in the Health care Investigation Guide. Therefore, the numbers reported here may greatly underestimate the number of outbreak-associated cases and the number of at-risk persons notified for screening. Because of the long incubation period (up to 6 months) and typically asymptomatic course of acute hepatitis B and C infection, it is likely that only a fraction of such outbreaks that occurred have been detected, and reporting of outbreaks detected and investigated by state and local health departments is not required. Outbreaks previously reported in 1998-2008 can be found in Thompson, et al external icon and Redd, et al external icon. ![]() The tables below summarize health care-associated outbreaks of hepatitis B virus (HBV) and hepatitis C virus (HCV) infection reported in the United States during 2008-2019. ![]()
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