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- Title
Characteristics of Large Mumps Outbreaks in the United States, July 2010–December 2015.
- Authors
Clemmons, Nakia S; Redd, Susan B; Gastañaduy, Paul A; Marin, Mona; Patel, Manisha; Fiebelkorn, Amy Parker
- Abstract
Background Mumps is an acute viral illness that classically presents with parotitis. Although the United States experienced a 99% reduction in mumps cases following implementation of the 2-dose vaccination program in 1989, mumps has resurged in the past 10 years. Methods We assessed the epidemiological characteristics of mumps outbreaks with ≥20 cases reported in the United States electronically through the National Notifiable Diseases Surveillance System and from supplemental outbreak data through direct communications with jurisdictions from July 2010 through December 2015. Mumps cases were defined using the 2012 Council of State and Territorial Epidemiologists case definition. Results Twenty-three outbreaks with 20–485 cases per outbreak were reported in 18 jurisdictions. The duration of outbreaks ranged from 1.5 to 8.5 months (median, 3 months). All outbreaks involved close-contact settings; 18 (78%) involved universities, 16 (70%) occurred primarily among young adults (median age, 18–24 years), and 9 (39%) occurred in highly vaccinated populations (2-dose measles-mumps-rubella vaccine coverage ≥85%). Conclusions During 2010–2015, multiple mumps outbreaks among highly vaccinated populations in close-contact settings occurred. Most cases occurred among vaccinated young adults, suggesting that waning immunity played a role. Further evaluation of risk factors associated with these outbreaks is warranted.
- Subjects
UNITED States; COMMUNICATION; DISEASE outbreaks; IMMUNIZATION; MEASLES vaccines; MUMPS; MUMPS vaccines; RUBELLA vaccines; SYMPTOMS; DRUG administration; DRUG dosage
- Publication
Clinical Infectious Diseases, 2019, Vol 68, Issue 10, p1684
- ISSN
1058-4838
- Publication type
Article
- DOI
10.1093/cid/ciy779