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Vaccine. 2010 Jan 8;28(3):754-8. doi: 10.1016/j.vaccine.2009.10.075. Epub 2009 Nov 5.

Reduction in hospitalizations for diarrhea and rotavirus infections in New York state following introduction of rotavirus vaccine.

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New York state Department of Health, Division of Epidemiology, Albany, NY 12237, USA.



To monitor trends and costs of diarrhea and rotavirus-associated hospitalizations in New York before and after rotavirus vaccine implementation in 2006. To examine rotavirus test results from sentinel hospital-associated laboratories.


Hospital discharge data and laboratory rotavirus testing data were analyzed for children 1 month up to 18 years of age for 10 sentinel and all statewide hospitals from January 1, 2003 through December 31, 2008.


Among children 1-23 months of age, a 40% reduction in diarrhea-associated hospitalizations and 85% decrease in rotavirus-coded hospitalizations at the 10 sentinel hospitals was observed in 2008 compared with the average of pre-vaccine seasons from 2003 through 2006. For both sentinel and statewide hospitals, the percent of diarrhea admissions due to rotavirus was reduced at least 83% among children 1-23 months (vaccine eligible) and 70% for older unimmunized children. Statewide hospital costs for rotavirus hospitalizations in children <2 years of age were reduced $10 million. Sentinel hospital laboratory data validated the declining trends seen in hospitalizations.


In 2008, New York hospital data showed significant reductions in rotavirus hospitalizations and costs among children aged 1-23 months who were eligible for vaccine. Reductions also occurred among unimmunized older children suggesting the importance of continue monitoring in future seasons to fully assess vaccine impact.

[Indexed for MEDLINE]

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