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Vaccine. 2012 Dec 17;31(1):154-8. doi: 10.1016/j.vaccine.2012.10.078. Epub 2012 Nov 2.

Effectiveness of the Lanzhou lamb rotavirus vaccine against gastroenteritis among children.

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  • 1Guangzhou Center for Disease Control and Prevention, Guangzhou, China. fuchuanxi@gmail.com

Abstract

The Lanzhou lamb rotavirus (LLR) vaccine has been in use in China since 2000. This study evaluated this vaccine's effectiveness using a case-control design in Guangzhou. In the study area, there were 3130 laboratory-confirmed rotavirus gastroenteritis cases in children between 2 and 35 months old from 2009 to 2011. A total of 3607 controls were also enrolled in this study. Of the subjects, 970 (14.4%) had received 1 dose of the LLR vaccine. Because of the low vaccination rate, we only obtained an effectiveness of 44.3% (95% CI, 28.4-56.7%) for children 9-11 months old, 52.8% (40.8-62.3%) for children 12-17 months old, and 51.8% (11.6-73.8%) for children 18-35 months old for one dose. This post-marketing study found that one dose of the LLR vaccine confers partial protection when given to children between 9 and 35 months old. Therefore, earlier immunization and the administration of the full immunization regimen should be encouraged.

Copyright © 2012 Elsevier Ltd. All rights reserved.

[PubMed - indexed for MEDLINE]
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