Study of Some Bacteria Causing Conjunctivitis

Fifty samples from patients wih conjunctivitis were obtianed from conjunctiva of visitors to Ophthalomology Department In Al-Zahrawi Hospital, the laboratory tests results showed that 2 samples in percent of (4%) were negative to bacterial growth and 48 samples in percent of (96%) were positive to bacterial growth clinically diagnosed to 26acute and 22chronic conjunctivitis. It was seem that Neisseria sp. was the most frequent in the percentage of 26.4% followed by Staphylococcus aureus and Haemophilus influenzae 19.1% to both of them. Neisseiae sp. and H. influenzae break out the highest percent of acute conjunctivitis 38.4% to both of them while in chronic conjunctivitis Neisseria sp. recorded the highest percent 36.3%. There was 41.66% of cases had two pathogens. The sensitivity test results showed that Neisseria sp. isolated from acute infection was most sensitive to Ampicillin (90%) and most resistant to Amoxycillin and Erythromycin (75%), while in chronic infection was most sensitive to Ampicillin (75%) and most resistant to Clindamycin (100%). H. influenzae isolated from acute infections was most sensitive to Ampicillin (100%) and most resistant to Erythromycin (100%). The ratio of sensitivity and resistance of other isolated bacteria was different in acute and chronic infection