Abstract
Serum Hemagglutination Inhibition Activity Correlates with Protection from Gastroenteritis in Persons Infected with Norwalk Virus Rita Czakó a , b , Robert L. Atmar a , b , c , Antone R. Opekun c , d , Mark A. Gilger d , David Y. Graham b , c and Mary K. Estes a , b , c a Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, Texas b Department of Molecular Virology and Microbiology, Baylor College of Medicine, Houston, Texas c Department of Medicine, Baylor College of Medicine, Houston, Texas d Department of Pediatrics, Baylor College of Medicine, Houston, Texas ABSTRACT A hemagglutination inhibition (HAI) assay to assess serum antibody responses following Norwalk virus (NV) infection was developed. HAI activity increased significantly in individuals experimentally infected with NV ( n = 18) and correlated with antibody levels measured in a histo-blood group antigen (HBGA) blocking assay. Prechallenge HAI antibody levels also correlated with protection from the development of gastroenteritis (Mann-Whitney test, P = 0.02). The HAI assay is another assay suitable for the detection of antibody that correlates with protection from Norwalk virus-associated disease.Preview Only. This article cannot be rented because we do not currently have permission from the publisher.
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