{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,23]],"date-time":"2026-08-23T15:19:04Z","timestamp":1787498344463,"version":"build-2736575974"},"reference-count":31,"publisher":"Oxford University Press (OUP)","issue":"Supplement_4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2022,10,21]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>We describe the changing epidemiology of varicella outbreaks informed by past and current active and passive surveillance in the United States by reviewing data published during 1995\u20132015 and analyzing new data from 2016 to 2019. Varicella outbreaks were defined as \u22655 varicella cases within 1 setting and \u22651 incubation period. During the 1-dose varicella vaccination program (1995\u20122006), the number of varicella outbreaks declined by 80% (2003\u20132006 vs 1995\u20131998) in 1 active surveillance area where vaccination coverage reached 90.5% in 2006. During the 2-dose program, in 7 states with consistent reporting to the Centers for Disease Control and Prevention, the number of outbreaks declined by 82% (2016\u20132019 vs 2005\u20132006). Over the entire program (1995\u20132019), outbreak size and duration declined from a median of 15 cases\/outbreak and 45 days duration to 7 cases and 30 days duration. The proportion of outbreaks with &amp;lt;10 cases increased from 28% to 73%. During 2016\u20122019, most (79%) outbreak cases occurred among unvaccinated or partially vaccinated persons eligible for second-dose vaccination, highlighting the potential for further varicella control.<\/jats:p>","DOI":"10.1093\/infdis\/jiac214","type":"journal-article","created":{"date-parts":[[2022,8,24]],"date-time":"2022-08-24T11:43:24Z","timestamp":1661341404000},"page":"S400-S406","source":"Crossref","is-referenced-by-count":25,"title":["Changing Epidemiology of Varicella Outbreaks in the United States During the Varicella Vaccination Program, 1995\u20132019"],"prefix":"10.1093","volume":"226","author":[{"given":"Jessica","family":"Leung","sequence":"first","affiliation":[{"name":"Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adriana S","family":"Lopez","sequence":"additional","affiliation":[{"name":"Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mona","family":"Marin","sequence":"additional","affiliation":[{"name":"Division of Viral Diseases, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention , Atlanta, Georgia , USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2022,10,21]]},"reference":[{"key":"2022102100075207000_jiac214-B1","first-page":"1","article-title":"Prevention of varicella: recommendations of the Advisory Committee on Immunization Practices (ACIP)","volume":"56","author":"Marin","year":"2007","journal-title":"MMWR Recomm 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