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 bydisk diffusion method. Beta-lactamase production was done for pencillinresistant 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 diffusionmethod, beta-lactamase production was positive in all (PRSA) isolates. Allisolates 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 wereresistant to 9 Kinds; 4 isolate was resistant to 8 Kinds; 3isolates were resistant to7 Kinds ;2 isolates were resistant to 6 Kinds;4 isolates to 5 kinds & 2 isolates to4 kinds of antibiotics.Key words: conjunctivitis,bacteria,antibiotic.