Evaluation of a new latex test and a new enzyme immunoassay for determination of rubella immunity.

A new enzyme immunoassay (Rubenostika; Organon Teknika, Turnhout, Belgium), a new latex agglutination test (Rubalex; Orion Diagnostica, Espoo, Finland), and three other accepted methods for the determination of rubella immunity were compared with a standard hemagglutination inhibition assay. Of 224 serum samples tested, 54 (24%) were nonreactive and 24 (11%) were low titered. All procedures were very specific (94 to 100%). Rubenostika was the least sensitive method (88%), and Rubalex was the most sensitive (98%).