Top 10 Medical Stories of 2008: No. 4
In the United States, a significantly milder rotavirus season coincided with increasing uptake of the rotavirus vaccine.
The onset of the most recent rotavirus season was delayed by 2-4 months, and its magnitude was reduced by more than 50%, when compared with the previous 15 seasons of viral activity in the United States. These surveillance data coincide with increasing administration of the rotavirus vaccine (RotaTeq; Merck) in infants, according to a June report in the MMWR. The live, oral vaccine was approved by the FDA in 2006, and its routine administration at 2, 4, and 6 months of age is recommended by the CDC’s Advisory Committee on Immunization Practices.
According to the CDC, mean coverage in the United States with 1 dose of rotavirus vaccine among 3-month-old infants increased from 49% in May 2007 to 56% in May 2008. In 13-month-old infants, mean coverage with 3 doses increased from 3.4% in May 2007 to 33.7% in May 2008.
Percentage of Positive Rotavirus Tests From NREVSS
(Data from 2008 are current through May 3)