Passive hemagglutination test for enteric fever

Passive hemagglutination test for bovine chlamydial abortion.

Purified chlamydial elementary bodies were subjected to sonic lysis to produce soluble antigen for passive hemagglutination (PHA). PHA was more sensitive than complement fixation (CF) in detecting antibody in hyperimmunized rabbits, lambs, and calves. Both CF and PHA tests were used to monitor antibody responses in experimentally infected pregnant cows. All animals responded with rises in titer...

Passive hemagglutination test for measles immunity and serodiagnosis.

A passive hemagglutination (PHA) test for measles was evaluated in comparison with hemagglutination inhibition (HI) and neutralization (NT) tests. The PHA test determines exclusively the level of antibody directed to the hemagglutinin protein of measles virus. The ratio of PHA to HI titer was 1 to 32 (geometric mean, 6.5) for the first 5 weeks of infection but declined to near unity thereafter....

Specificity of the passive hemagglutination test for antibody to rubella virus and the passive hemagglutination response after vaccination.

Nonspecific reactions by the passive hemagglutination test for rubella viral antibody occurred with 1.5% of sera tested. Rises in passive hemagglutination titers (greater than or equal to 4X) occurred with some serum samples taken 14 days after vaccination.

The Vi-Agglutination Test in Enteric Fever

Adenovirus antibody measured by the passive hemagglutination test.

Lefkowitz, Stanley S. (Variety Children's Research Foundation, Miami, Fla.), Julia A. Williams, Bernard E. Howard, and M. Michael Sigel. Adenovirus antibody measured by the passive hemagglutination test. J. Bacteriol. 91:205-212. 1966.-Rabbits immunized intravenously with adenovirus type 5 antigen were tested for antibody titers by use of the passive hemagglutination test (PHA). Primary and sec...