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  • Title: New serotype of mutans streptococci isolated from pig oral cavity.
    Author: Takada K, Igarashi M, Yamaguchi Y, Hirasawa M.
    Journal: Microbiol Immunol; 2008 Feb; 52(2):64-8. PubMed ID: 18380803.
    Abstract:
    Gram-positive streptococcal mutans-like strains, but with clearly different colony formation than S. orisuis on Mitis Salivarius agar, were isolated from the pig oral cavity and identified by 16S rRNA sequencing, G+C content, DNA-DNA homology and extensive biochemical and serological testing. The phenotypic data showed that the strains were similar to S. orisuis except for susceptibility to bacitracin. DNA-DNA homology between the isolates and S. orisuis was 72~81%. However, serological data showed that they have a different sero-specific antigen from S. orisuis and other mutans streptococci. A new serotype, designated p, strains are classified in a serovar of S. orisuis, one of mutans streptococci.
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