title: Haemolytic streptococcus group R infection.
mesh_terms: D000003:Abattoirs; D000818:Animals; D006801:Humans; D008297:Male; D008590:Meningoencephalitis / Q000382:microbiology; D008875:Middle Aged; D009784:Occupational Diseases / Q000209:etiology; D013290:Streptococcal Infections / Q000382:microbiology; D013552:Swine