Tag: positive

  • Gram positive cocci

    Gram positive cocci

    Gender Aerococcus: Aerococcus viridans: It is gram-positive cocci arranged in tetrads or in clusters. On blood agar, colonies are surrounded by a greenish hemolysis. A. viridans stands Streptococcus and staphylococcus by microaerophilic respiratory type. Catalase is variable. Long considered a single air pollutant, A. viridans sometimes behaves as an opportunistic responsible for hospital infections in…