Abstract
BACKGROUND: Gastroenteritisis a major public-health problem in developing nations like Nepal, where communities are still ravaged by poverty, poor sanitation, poor personal hygiene, and poor water supplies.The objective of our study was to find the bacterial and parasitic agents responsible for causing gastroenteritis.METHODOLOGY: A hospital based prospective study was carried out for 3 months in Bacteriology and Parasitology section of STIDH. Stool samples received in respective section from patients with gastroenteritis were included in the study. Standard Microbiological Guidelines were employed for collection and processing of samples, followed by Isolation, Identification and Antimicrobial Susceptibility Testing of bacterial isolates. Normal saline and Iodine preparation were done for microscopic examination of parasites.RESULTS: Among 421 stool samples processed in Bacteriology section, 28(6.65%) showed bacterial growth with 15(53.57%) Shigella flexneri , 4(14.28%) S higella sonnei and 9(32.14%) Salmonella typhimurium . Ceftriaxone and Nalidixic acid were found to be the most Sensitive and Resistant antibiotic for Shigella spp. and Salmonella typhimurium. Similarly, in parasitology section, microscopic observation of 648 stool samples showed 136(20.98%) cysts of Entamoeba histolytica , 3(0.46%) cysts of Giardia lamblia , 2(0.30%) trophozoites of Giardia lamblia , 1 (0.15%) larva of Strongyloides stercoralis , 1(0.15%) ova of hookworm and 1(0.15%) ova of Ascaris lumbricoides .CONCLUSION: The study revealed Shigella species as the predominant bacterial agent with S. flexneri being the major one. Hence, extensive study of shigellosis with greater emphasis on resistance pattern of different group of antibiotics is essential in such hospital. Similarly, parasitic infections are found in significant amount. Hence, concerned hospital authorities and government official’s needs to take strict action in contending such infections.