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Normal range: Negative

Comment: Detect specific RSV antibody in patients suspected of having RSV. In a primary infection, RSV-specific IgM appears after 5-8 days and persists for several weeks. Detectable increases in RSV- specific IgG anti body titers occur 2-4 weeks after symptomatic infections. Thus, during an acute infection, serology is less sensitive than direct antigen detection or cell culture method

Sample: serum