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Actinomyces naeslundii genospecies 2 (gsp-2) are members of the autochthonous oral flora. Chromosomal DNA fingerprinting (CDF) with SmaI revealed extensive genetic diversity among A. naeslundii gsp-2 strains within individual mothers and children. There was a low prevalence of genotype match among A. naeslundii gsp-2 strains between all mother and child pairs.
Actinomyces are difficult to identify using serological and biochemical methods but genotyping is an efficient and reliable means of bacterial characterization and can be used to determine clonal identity. The purpose here was to genotype 13 American type culture collection (ATCC) reference strains representing six different oral Actinomyces spp. by using chromosomal DNA fingerprinting (CDF), arbitrarily...
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