Of 235 strains of coagulase-positive Staphylococcus aureus studied, 221 or 94% were inhibited by 1.5 x 10(-8)m sodium borate, whereas only 6 of 57 (10.5%) coagulase-negative strains were inhibited by the same borate concentration. Four of the six coagulase-negatives were food poisoning strains and one was a hospital pathogen. Borate sensitivity was found to correlate well with lysozyme and alph...

A group of strains of Staphylococcus albus is described which produced neither coagulase nor haemolysin, was slightly sensitive or resistant to novobiocin, and sensitive to all other antibiotics, to sulphonamides, and to nitrofurantoin. The agglutinating antigen 51 was isolated from all strains from patients with urinary infections and abundant pyuria. In more than 40 cases studied it was not p...

The isolation of two coagulase-negative strains of Staphylococcus pyogenes is reported, and their biochemical characteristics are given. The reliability of coagulase tests alone in the identification of Staph. pyogenes is discussed, and the deoxyribonuclease test is recommended as a useful confirmatory test.

AIM This study was devoted to elucidate the tetracycline resistance of coagulase-negative staphylococci (CNS) derived from normal and subclinical mastitic (SCM) buffaloes' milk in Egypt. MATERIALS AND METHODS A total of 81 milk samples from 46 normal buffalo milk samples and 35 SCM buffalo milk samples at private dairy farms of Egypt were used in this study. CNS were identified using phenotyp...

Coagulase-positive isolates of Staphylococcus intermedius from dogs and coagulase-positive isolates of Staphylococcus hyicus subsp. hyicus from a pig and cows were identified initially by a simplified scheme which can be readily performed in a routine diagnostic laboratory. Characters tested in the scheme included coagulase activity, colony pigment, and aerobic acid production from maltose. The...

The crescents were accompanied by foci of fibrinoid necrosis with endocapillary and extracapillary fibrin. Tubular atrophy and interstitial fibrosis were absent. Interstitial inflammation was present, focal and accompanied by tubular degenerative changes. There was evidence of necrotizing vasculitis. IF revealed granular, segmental to global glomerular capillary wall positivity for IgG, kappa a...

BACKGROUND Bacteria are the major contributor of ocular infections worldwide. Ocular infections, if left untreated, can damage the structures of the eye with possible blindness and visual impairments. This work was aimed to review the bacterial profile of ocular infections. METHODS Literature search was made in different electronic databases; the review was systematically made to get concrete...