Parasitic infection of in-patient at Siriraj Hospital from 1991 to 1995.

ABSTRACT

A retrospective study was carried out on 15,396 samples at the Department of Parasitology, Faculty of Medicine Siriraj Hospital, Mahidol University from January 1991 to December 1995. A total of 2,812 were found to have had parasitic infestation. Ages ranging from eight months to ninety-seven years old were recorded. The laboratories investigations including a simple saline smear, the sedimentation technique and special stains. The results were divided into four groups e.g., pathogenic protozoa (45.62%), nematode (40.36%); cestode and trematode. (8.67%) and non-pathogenic protozoa (5.33%) respectively. Pathogenic protozoan group comprised intestinal protozoa, blood and tissue sporozoa which were Blastocystis hominis (35.16%), Giardia lamblia (8.12%), Entamoeba histolytica (1.13%), Cryptosporidium sp. (0.90%), Plasmodium spp. (0.76%), Pneumocystis carinii (0.41%), Dientamoeba fragelis (0.22%) and Isospora belli (0.08%). The non pathogenic intestinal protozoa were Trichomonas hominess (2.80%), Entomoeba coli (2.51%), Endolimex nana (0.12%) and Iodamoeba buetschlii (0.02%). The intestinal nematode were found in the following percentages e.g., hookworms (20.43%), Strongyloides stercoralis (16.80%), Trichuris trichiura (0.61%), Ascaris lumbricolides (0.48%), Enterobius vermicularis (0.63%), and Capillaria philippinensis (0.12%). Angiosrongylus cantonensis was also observed in one case. The group was intestinal trematodes and cestodes consisted of Opisthorchis viverrini (6.02%), Taenia spp. (2.17%), Fasiola spp. (0.36%), Hymenolepis nana (0.12%).