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Intestinal parasitosis and shigellosis among diarrheal patients in Gondar teaching hospital, northwest Ethiopia

DOI: 10.1186/1756-0500-4-472

Keywords: Intestinal parasitosis, Shigellosis, Gondar

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A cross-sectional study involving 384 consecutive diarrheal patients who visited Gondar teaching hospital, Gondar, Ethiopia from October 2006 to March 2007 was conducted. Stool specimens were collected and examined for intestinal parasites and enteropathogenic bacteria following standard parasitological and microbiological procedures.Intestinal parasites were diagnosed in 36.5% of the patients. The most frequently encountered protozoan parasite was Entamoeba histolytica/dispar (7.3%) followed by Giardia lamblia (5.0%), Cryptosporidium parvum (1.8%) and Isospora belli (1.3%). The dominant helminthic parasite identified was Ascaris lumbricoides (5.5%) followed by Strongyloides stercoralis and Schistosoma mansoni (3.1% each), hookworm infection (1.8%), and Hymenolepis species (1.3%). Multiple infections of intestinal parasites were also observed in 6.3% of the patients. Among the enteropathogenic bacteria Shigella and Salmonella species were isolated from 15.6% and 1.6%, respectively, of the patients. Escherichia coli O57:H7 was not found in any of the stool samples tested. Eighty eight percent and 83.3% of the Shigella and Salmonella isolates were resistant to one or more commonly used antibiotics, respectively.Intestinal parasitosis was higher in patients who live in rural area, in patients who were washing their hands after visiting toilet either irregularly with soap and without soap or not at all, in patients who used well and spring water for household consumption, and in patients who had nausea (P < 0.05). Statistically significant associations were also observed between Shigella infections and patients who were using well and spring water for household consumption, and patients who had dysentery and mucoid stool (P < 0.05).The high prevalence of intestinal parasites and Shigella species in diarrheic patients calls for institution of appropriate public health intervention measures to reduce morbidity and mortality associated with these diseases. The rational use


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