Abstract:Phagocytosis of glass‐adherent group B streptococci (GBS) by bovine polymorphonuclear leukocytes (PMN) was investigated by a fluorochrome microassay. Three out of the four tested strains were taken up in the absence of serum, but phagocytosis was increased when immobilized bacteria were pre‐treated by either normal bovine serum (NBS, containing antibodies to GBS), precolostral calf serum (PCS, virtually devoid of antibodies), heat‐inactivated PCS (H‐PCS), or to a lesser extent by human serumalbumin (HSA) or ge… Show more
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