From JAMA's Daily News Site
March 6, 2013

Selections From News@JAMA and JAMA Forum

JAMA. 2013;309(9):864-864. doi:10.1001/jama.2013.1316

Vaccinating young children to protect them from rotavirus also appears to indirectly protect adults, according to a recent study.

Researchers at Northwestern Memorial Hospital in Chicago analyzed 3530 adult stool samples. Some of the samples were collected between 2008 and 2010 and others were gathered between 2006 and 2007, before rotavirus vaccination of US infants became widespread. The researchers reported that the prevalence of rotavirus infection among adults nearly halved, from 4.35% in 2006-2007 to 2.24% in 2009-2010. Adult rotavirus infections cost an estimated $152 million in annual inpatient hospital charges, suggesting that infant vaccination will be more cost-effective than previously believed.

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