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Clinical and Vaccine Immunology, September 2007, p. 1223-1227, Vol. 14, No. 9
1071-412X/07/$08.00+0 doi:10.1128/CVI.00184-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Division of Bacterial Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia
Received 1 May 2007/ Returned for modification 4 June 2007/ Accepted 20 June 2007
The 23-valent pneumococcal polysaccharide (Ps) vaccine offer protection against vaccine serotypes, but its cross-protection against vaccine-related serotypes is variable. We have demonstrated that the functional antibodies to serotype 15B are specific to the O-acetylated 15B-Ps and that they have low cross-reactivity with serotype 15C. Demonstration of functionally cross-reactive antibodies to vaccine-related serotypes is important for surveillance and vaccine development.
Published ahead of print on 3 July 2007.
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