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Antibody Avidity Maturation during Severe Acute Respiratory Syndrome–Associated Coronavirus Infection

Identifieur interne : 004A14 ( Main/Exploration ); précédent : 004A13; suivant : 004A15

Antibody Avidity Maturation during Severe Acute Respiratory Syndrome–Associated Coronavirus Infection

Auteurs : Paul K. S. Chan [Hong Kong] ; Pak-Leong Lim [République populaire de Chine] ; Esther Y. M. Liu ; Jo L. K. Cheung ; Danny T. M. Leung [République populaire de Chine] ; Joseph J. Y. Sung

Source :

RBID : ISTEX:5DD0BEB62B64B1A8E923C9787736EDCE8986FDE0

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English descriptors

Abstract

The maturation of virus-specific immunoglobulin G avidity during severe acute respiratory syndrome–associated coronavirus infection was examined. The avidity indices were low (mean ± SD, 30.8% ± 11.6%) among serum samples collected ⩽50 days after fever onset, intermediate (mean ± SD, 52.1% ± 14.1%) among samples collected between days 51 and 90, and high (mean ± SD, 78.1% ± 8.0%) among samples collected after day 90. Avidity indices of 40% and 55% could be considered as cutoff values for determination of recent (⩽50 days) and past (>65 days) infection, respectively. Measurement of antibody avidity can be used to differentiate primary infection from reexposure and to assess humoral responses to candidate vaccines

Url:
DOI: 10.1086/430615


Affiliations:


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Le document en format XML

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