BACKGROUND: The largest reported mumps outbreak at a US college in 19 years occurred in 2006 at a Kansas university with a 2-dose measles-mumps-rubella (MMR) vaccination policy. We assessed vaccine performance and mumps risk factors, including the possibility of waning vaccine protection. METHODS: Case students were compared with a cohort of the university's approximately 19,000 undergraduates. The secondary attack rate for clinical mumps was determined among roommates exposed to case students. Time from receipt of the second dose of MMR vaccine was compared between case students and roommates without mumps. RESULTS: Coverage with > or =2 dose of MMR vaccine was > or =95% among 140 undergraduate case students and 444 cohort students. The secondary attack rate for clinical mumps among roommates who had received 2 doses of vaccine ranged from 2.2% to 7.7%, depending on the case definition. Compared with roommates without mumps, case students were more likely (odds ratio, 2.46; 95% confidence interval, 1.25-4.82) to have received their second dose of MMR vaccine > or =10 years earlier. The odds of being a case student increased with each 1-year increase in time from receipt of the second dose of MMR vaccine (odds ratio, 1.36; 95% confidence interval, 1.10-1.68) among case students and roommates aged 18-19 years but not among those aged > or =20 years. Students aged 18-19 years had a higher risk of mumps (risk ratio, 3.14; 95% confidence interval, 1.60-6.16), compared with students aged > or =22 years; women living in dormitories had increased risk of mumps (risk ratio, 1.95; 95% confidence interval, 1.01-3.76), compared with men not living in dormitories. CONCLUSION: High 2-dose MMR coverage protected many students from developing mumps but was not sufficient to prevent the mumps outbreak. Vaccine-induced protection may wane. Similar US settings where large numbers of young adults from wild-type naive cohorts live closely together may be at particular risk for mumps outbreaks.
BACKGROUND: The largest reported mumps outbreak at a US college in 19 years occurred in 2006 at a Kansas university with a 2-dose measles-mumps-rubella (MMR) vaccination policy. We assessed vaccine performance and mumps risk factors, including the possibility of waning vaccine protection. METHODS: Case students were compared with a cohort of the university's approximately 19,000 undergraduates. The secondary attack rate for clinical mumps was determined among roommates exposed to case students. Time from receipt of the second dose of MMR vaccine was compared between case students and roommates without mumps. RESULTS: Coverage with > or =2 dose of MMR vaccine was > or =95% among 140 undergraduate case students and 444 cohort students. The secondary attack rate for clinical mumps among roommates who had received 2 doses of vaccine ranged from 2.2% to 7.7%, depending on the case definition. Compared with roommates without mumps, case students were more likely (odds ratio, 2.46; 95% confidence interval, 1.25-4.82) to have received their second dose of MMR vaccine > or =10 years earlier. The odds of being a case student increased with each 1-year increase in time from receipt of the second dose of MMR vaccine (odds ratio, 1.36; 95% confidence interval, 1.10-1.68) among case students and roommates aged 18-19 years but not among those aged > or =20 years. Students aged 18-19 years had a higher risk of mumps (risk ratio, 3.14; 95% confidence interval, 1.60-6.16), compared with students aged > or =22 years; women living in dormitories had increased risk of mumps (risk ratio, 1.95; 95% confidence interval, 1.01-3.76), compared with men not living in dormitories. CONCLUSION: High 2-dose MMR coverage protected many students from developing mumps but was not sufficient to prevent the mumps outbreak. Vaccine-induced protection may wane. Similar US settings where large numbers of young adults from wild-type naive cohorts live closely together may be at particular risk for mumps outbreaks.
Authors: Steven A Rubin; Malen A Link; Christian J Sauder; Cheryl Zhang; Laurie Ngo; Bert K Rima; W Paul Duprex Journal: J Virol Date: 2011-11-09 Impact factor: 5.103
Authors: R Allwinn; B Zeidler; K Steinhagen; E Rohwäder; S Wicker; H F Rabenau; H W Doerr Journal: Eur J Clin Microbiol Infect Dis Date: 2011-04-01 Impact factor: 3.267
Authors: Xin-Xing Gu; Stanley A Plotkin; Kathryn M Edwards; Alessandro Sette; Kingston H G Mills; Ofer Levy; Andrea J Sant; Annie Mo; William Alexander; Kristina T Lu; Christopher E Taylor Journal: Clin Vaccine Immunol Date: 2017-07-05
Authors: L A Trotz-Williams; N J Mercer; K Paphitis; J M Walters; D Wallace; E Kristjanson; J Gubbay; T Mazzulli Journal: Clin Vaccine Immunol Date: 2017-02-06
Authors: Cristina V Cardemil; Rebecca M Dahl; Lisa James; Kathleen Wannemuehler; Howard E Gary; Minesh Shah; Mona Marin; Jacob Riley; Daniel R Feikin; Manisha Patel; Patricia Quinlisk Journal: N Engl J Med Date: 2017-09-07 Impact factor: 91.245
Authors: Angela S Huang; Margaret M Cortese; Aaron T Curns; Rebecca H Bitsko; Hannah T Jordan; Fatma Soud; Jose Villalon-Gomez; Patricia M Denning; Kim A Ens; Gail R Hanson; Gustavo H Dayan Journal: Public Health Rep Date: 2009 May-Jun Impact factor: 2.792