title: Serological differences in Legionella pneumophila infections.
abstract: Guinea pigs were infected with two subtypes of Legionella pneumophila serogroup 1 (UH1 and RH1). Seroconversion by indirect fluorescent-antibody assay was demonstrated in 94 to 97% of guinea pigs when the challenge strain was used as the antigen. The standard Philadelphia 1 antigen demonstrated seroconversion in 94% UH1-challenged animals, but in only 66% of RH1-challenged animals.
mesh_terms: D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis; D006168:Guinea Pigs; D007875:Legionella / Q000145:classification; D007877:Legionnaires' Disease / Q000276:immunology*; D008297:Male; D012703:Serotyping
chemical_list: D000907:Antibodies, Bacterial