A Study Involving Bacteriology on Some Bacteria Connected with Respiratory Tract Infections in Baghdad City

Abstract

Seventy-five samples were collected from the respiratory tract areas, distributed among 25 people with respiratory tract infections and diabetes, 25 people with respiratory tract infections and without diabetes, and 25 people without diabetes as a control group. Collecting samples from May 9 to November 28, 2022, from patients visiting  chest and respiratory diseases consultation clinics with and without diabetes in Baghdad city. The results showed that S. aureus were the most isolated, accounting for 42%, 50%, and 22% of people with respiratory tract infections and diabetes, people with respiratory tract infections, people without diabetes, and healthy people, respectively. As for the isolated species, their frequency ranged from S. epidermidis to 15% and 21%. 44%, respectively. Followed by S. pyogenes, the percentage reached 21%, 14%, and 22%, respectively. Followed by S. pneumonia at 10% and 7%, respectively. Finally, Viridans Streptococci Group was 10%, 7%, and 11%, respectively. The results of the study showed virulence factors associated with the pathogenicity of bacterial species. It was found that 12 (70)% of S. aureus were able to produce capsule, 8 (80)% belonged to S. epidermidis, 4 (50)%, 3 (75)%, and 2 (66.6)% belonged to To Staphylococcus aureus. S. epidermis. to S. pyogenes, S. pneumonia, and Viridans Streptococci group, respectively. A The results of the adhesion test showed that 15(88)%, 6(60)%, 5(62.5)%, 3(75)%, 2(66.6)% belonged to S. aureus, S. epidermidis, S. pyogenes, S. pneumonia, and Streptococci viridans, respectively. The results showed that the isolates were able to produce the enzyme helylysin and were 13 (76)%, 3 (37.5)%, 2 (50)%, and 3 (100)% for the same species, respectively.