RT Journal Article SR Electronic(1) A1 Nobre, Gustavo Neves A1 Ferreira, Antáoanio FrazãatoYR 1986 T1 Enhancement of Streptococcus faecalis Infection and Complement Depletion in Yeast-treated Mice JF Microbiology, VO 132 IS 5 SP 1277 OP 1281 DO https://doi.org/10.1099/00221287-132-5-1277 PB Microbiology Society, SN 1465-2080, AB Enhancement of Streptococcus faecalis infection and lowering of the complement level have been demonstrated in mice injected with a heat-treated suspension of baker's yeast (Saccharomyces cerevisiae). The leucocyte response to the infection was not affected. The yeast preparation showed, in vitro, an intense anti-complementary activity on mouse serum and interfered with the microbial killing function of the mouse peritoneal macrophages. No significant stimulation of the growth of S. faecalis in vitro in the presence of the yeast was observed. The enhancement of the infection in mice treated with the yeast seems to be mediated, mainly, by complement depletion., UL https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-132-5-1277