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serum from patients recently recovered from a disease; useful for diagnosis by demonstrating a fourfold increase in specific antibodies or in preventing or modifying by passive immunization the same disease in exposed susceptible people.
convalescent serumSerum from a person who has recuperated from a particular infection–eg, scarlet fever, which may be of use in treating a person with the same infection; while acute-phase serum has ↑ IgM antibodies, CS has ↓ IgM, and ↑ IgG antibodies
Serum from a person recovering from an infection.
See also: serum