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Clinical and Vaccine Immunology, November 2007, p. 1522-1525, Vol. 14, No. 11
1071-412X/07/$08.00+0 doi:10.1128/CVI.00144-07
Copyright © 2007, American Society for Microbiology. All Rights Reserved.

Centers for Disease Control and Prevention (CDC), Atlanta, Georgia,1 Instituto Nacional de Perú (INS), Ministerio de Salud, Lima, Peru,2 Pan American Health Organization, Washington, D.C,3 Dirección General de Epidemiología, Ministerio de Salud, Lima, Peru4
Received 23 March 2007/ Returned for modification 4 June 2007/ Accepted 10 September 2007
Most persons with rubella virus-specific immunoglobulin M (IgM)- or IgG-positive sera tested positive (98% [n = 178] and 99% [n = 221], respectively) using paired filter paper dried blood spot (DBS) samples, provided that DBS indeterminate results were called positive. For persons with IgM- or IgG-negative sera, 97% and 98%, respectively, were negative using DBS.
Published ahead of print on 19 September 2007.
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