A serological study of streptococci isolated from fluids and tissues of animal origin

Abstract

A total of 668 strains of streptococci isolated from tissues and fluids of birds and animals was tested for haemolytic activity and reactivity with antisera for Lancefields Groups A-P and S.
It was not possible to group 362 strains. Distribution of strains in Lancefield groups was A, 1; B, 12; C, 101; D, 109; E, 1; F, O; G, 3; H, O; K, 8; L, 27; M, O; N, 14; O, 8; P, O; and S, 10. In addition, cross-reacting strains from pigs included GH, 1; HK, 8; GHK, 1; and GK, 2.
Attention is drawn to the occurrence of Group 0 strains in an outbreak of bovine mastitis and the predominance of Group D strains in those isolated from birds.