Authors:
Address: Instituto Oswaldo Cruz - Fiocruz, Rio de Janeiro, Brasil.
Journal:

Publication:

abstract

This survey aims to estimate the Prevalence of intestinal parasitic infections in Santa Isabel do Rio Negro, Amazonian Brazil, through three distinct techniques, correlating the prevalence rates with family income and age groups as well as assessing the household clustering of infections. Prevalence rates were assessed through Graham (n=113), Baermann-Moraes (n=232) and Ritchie (n=463) methods. The Graham method was adopted only for children under 5 years old, 15% of whom were positive for Enterobius vermicularis. By the Baermann-Moraes technique, 5·6% of the samples were positive for Strongyloides stercoralis larvae. The Ritchie technique disclosed the following results: Ascaris lumbricoides (26%), Trichuris trichiura (22·5%), hookworms (9·5%), Entamoeba histolytica/Entamoeba dispar (25·3%), Giardia lamblia (12·5%) and E. vermicularis (0·6%). Children aged 5-14 years presented the highest prevalence for pathogenic parasites. Giardiasis and hookworm infection rates were inversely related to family income. The presence of positive contacts in the same household substantially increased the risk of infection by enteric parasites: odds ratio (OR)=2·70, 95% confidence interval (CI)=1·69-4·29 for ascariasis; OR=2·17, 95% CI=1·34-3·51 for trichuriasis; OR=2·13, 95% CI=1·08-4·17 for hookworm disease; OR=3·42, 95% CI=1·86-6·30 for giardiasis; and OR=2·16, 95% CI=1·35-3·47 for amoebiasis, supporting infection clustering in the home. Intestinal parasitoses are extremely frequent in the studied area, and routine methods for diagnosis may underestimate the prevalence of enterobiasis and strongyloidiasis.

Related Articles
[Intestinal parasitism in a Parakanã indigenous community in southwestern Pará State, Brazil].
Cad Saude Publica. 1998
[Intestinal parasitism in a Parakanã indigenous community in southwestern Pará State, Brazil].
Miranda RA, Xavier FB, Menezes RC. Cad Saude Publica. 1998 Jul-Sep; 14(3):507-11.
Strongyloides stercoralis and other enteroparasites in children at Uberlândia city, state of Minas Gerais, Brazil.
Mem Inst Oswaldo Cruz. 1998
Strongyloides stercoralis and other enteroparasites in children at Uberlândia city, state of Minas Gerais, Brazil.
Machado ER, Costa-Cruz JM. Mem Inst Oswaldo Cruz. 1998 Mar-Apr; 93(2):161-4.
Giardia lamblia and other intestinal parasitic infections and their relationships with nutritional status in children in Brazilian Amazon.
Rev Inst Med Trop Sao Paulo. 2...
Giardia lamblia and other intestinal parasitic infections and their relationships with nutritional status in children in Brazilian Amazon.
Carvalho-Costa FA, Gonçalves AQ, Lassance SL, Silva Neto LM, Salmazo CA, Bóia MN. Rev Inst Med Trop Sao Paulo. 2007 May-Jun; 49(3):147-53.
Mass treatment for intestinal helminthiasis control in an Amazonian endemic area in Brazil.
Rev Inst Med Trop Sao Paulo. 2...
Mass treatment for intestinal helminthiasis control in an Amazonian endemic area in Brazil.
Bóia MN, Carvalho-Costa FA, Sodré FC, Eyer-Silva WA, Lamas CC, Lyra MR, Pinto VL Jr, Cantalice Filho JP, Oliveira AL, Carvalho LM, et al. Rev Inst Med Trop Sao Paulo. 2006 Jul-Aug; 48(4):189-95.
Geographical location and age affects the incidence of parasitic infestations in school children.
Indian J Pathol Microbiol. 2010
Geographical location and age affects the incidence of parasitic infestations in school children.
Rayan P, Verghese S, McDonnell PA. Indian J Pathol Microbiol. 2010 Jul-Sep; 53(3):498-502.

To top • Home

---

Show map | Diseases | Vaccination | Chronic disease | Medicine | Pregnancy | Heat & Sunburn | Cold | Security | Useful tips | Faq | News

TraveldoctorOnline 2001 • Disclaimer • webmaster