Follow-up of cardiovascular adverse events after smallpox vaccination among civilians in the United States, 2003

National Immunization Program, Division of Viral and Rickettsial Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia, USA.
Clinical Infectious Diseases (Impact Factor: 8.89). 04/2008; 46 Suppl 3:S251-7. DOI: 10.1086/524741
Source: PubMed


Limited information exists regarding intermediate or long-term consequences of cardiac adverse events (CAEs) after smallpox vaccination. We conducted follow up at 5-12 months after vaccination of 203 US civilian vaccinees who reported a possible CAE. Among 31 of the 33 with confirmed CAEs, at least 1 health-related quality-of-life change persisted for approximately 48%; approximately 87% missed work (average, 11.5 days). Among 168 of the 170 case patients with other reported cardiovascular conditions, at least 1 health-related quality-of-life change persisted for approximately 40%; almost 49% missed work (average, 10.2 days). Almost all vaccinees with possible CAEs were working the same number of hours at follow-up compared with before vaccination. Although intermediate-term consequences among possible postvaccination CAEs were not considered serious, lost days of work and a decline in health-related quality of life at the time of follow-up were common, resulting in personal economic and quality-of-life burden.

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