Study the antibiotics sensitivity and beta- lactamase productivity of some Staphylococcus spp. Isolates from different sources of the Al Jamhoree Teaching Hospital in Mosul City
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Abstract
The study includes the isolation of certain types of Gram-positive bacteria Staphylococcus spp..The sample materials (blood, wounds, burns) were collected from both genders of all age groups of inpatients in Al Jamhoree Teaching Hospital in the Mosul during June till end of November 2018.
Staphylococcus aureus was the most common among the isolates with 7 isolates(38.9%) followed by Staphylococcus epidermidis, Staphylococcus scriuri Staphylococcus lentus (Staphylococcus simulans) with 2 isolates each with 11.1% followed by Staphylococcus chromogenase, Staphylococcu scapilis and Staphylococcus xylosus with one isolate for each one 5.5%. The number of isolates was 9 isolates and 50%, followed by wound samples. The isolates were 6 isolated by 33% and the samples of burns were 3 isolates. 17% were isolated and Staphylococcus aureus was the most dominant species.
The sensitivity of bacterial isolates was studied for 15 antibiotics for different antibiotic groups. The results showed that a difference in the resistance ratio of the isolates to these antagonists, as they were resistant to the Ceftrixone, Cloxacillin 100%.
The Ciprofloxacillin, Gentamycin, Pipracillin, and Amikacin resistance were reduced. The Ciprofloxacillin antagonist was the most affected on the bacterial isolates studied, followed by the Rifampin. The results showed that the beta-lactamase enzyme was not produced by any of the Iodic methods by 4 bacterial strains, while the rest of the species varied in the susceptibility of production to the enzyme. The Iodine tube is one of the best methods to detect the production of these enzymes.
The susceptibility of bacterial species to the production of large-spectrum beta-lactase enzymes was also tested using the National Committee for Clinical Laboratory Standards (NCCL) and the double-disc method. Staphylococcus lentus, Staphylococcus capilis, Staphylococcus chromanogenes The first NCCL has shown a single isolation of Staphylococcus capilis ability to produce it
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