Incidence of Bacteria in Conjunctival Infections and their Antibiotic susceptibility

Abstract

Out of 54 clinical swabs of conjunctivital infections, 24 isolates(44.4%) were identified and tested for their susceptibility to 10 Kinds of antibiotics by disk diffusion method. Beta-lactamase production was done for pencillin resistant Staphylococcus aureus (PRSA).

The most frequent pathogenes were Staphylococcus aureus (33.3 %), Staphylococcus epidermidis (29.1%), Pseudomonas aeruginosa (16.6%), Streptococcus pneumoniae (12.5)& Haemophilus influenzae (8.3%).
20 isolates (83.3 %) showed resistance to pencillin by the disk diffusion method, beta-lactamase production was positive in all (PRSA) isolates. All isolates of S.aureus& S.epidermidis were sensitive to vancomycin (100%).
Ciprofloxacin, was the most active antibiotic then gentamycin, chloramphenicol, trimethoprim-sulpham ethoxazole, whereas erythromycin, amoxicillin, tetracyclin and penicillin were the lowest activity.
Multiple antibiotic resistance was seen in this study: 2 isolates were resistant to 9 Kinds; 4 isolate was resistant to 8 Kinds; 3isolates were resistant to 7 Kinds ;2 isolates were resistant to 6 Kinds;4 isolates to 5 kinds & 2 isolates to 4 kinds of antibiotics.