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Am J Trop Med Hyg ; 104(3): 910-916, 2021 01 18.
Article in English | MEDLINE | ID: mdl-33534771

ABSTRACT

Giardia intestinalis is one of the most common causes of parasite-induced diarrhea, abdominal pain, flatulence, and malabsorption. Yet, data on the epidemiology of G. intestinalis infections in North Africa are limited. The purpose of this study was to carry out a retrospective survey on the level of intestinal parasitism with a particular emphasis on G. intestinalis in children and adults in Algiers, Algeria. A total of 2,054 individuals from outpatient clinics or hospitalized at Beni-Messous University Hospital of Algiers undergoing stool microscopy for ova and parasites were included. The overall parasite infection rate was 28%. In the 567 parasite-positive samples, Blastocystis was found most frequently (57.3%), followed in frequency by Endolimax nana (41.0%), Entamoeba histolytica/dispar (19.6%), G. intestinalis (17.1%), Entamoeba coli (13.9%), Chilomastix mesnili (1.0%), Iodamoeba bütschlii (0.7%), Entamoeba hartmanni (0.5%), and Cryptosporidium spp. (0.2%). Intestinal parasites were generally more common in adults than in children, except for Giardia, which was more common in children (P = 0.0001). Giardia infection was independent of gender (P = 0.94). Compared with other intestinal parasitic infections, clinical manifestations, such as abdominal pain (P = 0.28) and diarrhea (P = 0.82), were found not to be significantly linked to Giardia infection. In conclusion, G. intestinalis is common in individuals referred to the University Hospital of Beni-Messous with digestive symptoms, particularly so in children. However, in our study, intestinal symptoms appeared not to be more linked to Giardia than to other intestinal parasites.


Subject(s)
Epidemiological Monitoring , Feces/parasitology , Giardiasis/diagnosis , Giardiasis/epidemiology , Intestinal Diseases, Parasitic/diagnosis , Intestinal Diseases, Parasitic/epidemiology , Adolescent , Adult , Age Factors , Aged , Aged, 80 and over , Algeria/epidemiology , Animals , Child , Child, Preschool , Female , Giardia/isolation & purification , Humans , Infant , Infant, Newborn , Male , Middle Aged , Prevalence , Retrospective Studies , Sex Factors , Young Adult
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