Antibody Avidity Maturation during Severe Acute Respiratory Syndrome–Associated Coronavirus Infection
Identifieur interne : 004A14 ( Main/Exploration ); précédent : 004A13; suivant : 004A15Antibody 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. SungSource :
- The Journal of Infectious Diseases [ 0022-1899 ] ; 2005.
Descripteurs français
- KwdFr :
- MESH :
- immunologie : Syndrome respiratoire aigu sévère, Virus du SRAS.
- physiologie : Affinité des anticorps, Anticorps antiviraux, Immunoglobuline G.
- Adulte, Adulte d'âge moyen, Facteurs temps, Femelle, Humains, Mâle, Sujet âgé, Sujet âgé de 80 ans ou plus.
English descriptors
- KwdEn :
- MESH :
- chemical , physiology : Antibodies, Viral, Immunoglobulin G.
- immunology : SARS Virus, Severe Acute Respiratory Syndrome.
- physiology : Antibody Affinity.
- Adult, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Time Factors.
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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<front><div type="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</div>
</front>
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