VOLUME 285 (2010) PAGES 40762–40770
Floyd G. Adsit has been added as an author. His affiliation is the Quality Assurance Laboratory/Veterinary Medicine Section, NIEHS, National Institutes of Health, Research Triangle Park, North Carolina 27709.
NIEHS was incorrectly inserted into the correspondence address for Dr. Boyington. His correct address is Vaccine Research Center, NIAID, NIH, Bethesda, MD 20892.