Precipitins in Liberian sera reacting with goat and sheep sera.

Precipitins in nine sera from normal Liberian adults were shown to react with an alpha-globulin in goat and sheep sera. No cross-reaction was demonstrated with bovine sera. Hence these precipitins are different to others previously described. At present their significance, if any, is unknown. They are important as a possible cause of unexplained reactions in serological tests using sheep or goat serum as a source of antigen or antibody.