Prevalence of intestinal parasites in school children from Ciudad Bolívar, Venezuela: comparison between two periods

  • Rodolfo Devera Intestinal Parasitosis Group, Department of Parasitology and Microbiology, School of Health Sciences, Universidad de Oriente, Bolívar Nucleus, Ciudad Bolívar, Bolívar state, Venezuela
  • Ytalia Blanco Intestinal Parasitosis Group, Department of Parasitology and Microbiology, School of Health Sciences, Universidad de Oriente, Bolívar Nucleus, Ciudad Bolívar, Bolívar state, Venezuela
  • Iván Amaya Intestinal Parasitosis Group, Department of Parasitology and Microbiology, School of Health Sciences, Universidad de Oriente, Bolívar Nucleus, Ciudad Bolívar, Bolívar state, Venezuela
Keywords: intestinal parasites, schoolchildren, Blastocystis spp

Abstract

The prevalence of intestinal parasites in 921 schoolchildren from nine schools in Ciudad Bolivar, Bolivar State, Venezuela during the period 2009-2013 was determined and compared with that obtained in the same city in the period 1995-1996 in seven schools and 446 children. At the first opportunity the fecal samples were analyzed by direct examination and Willis technical; while for the second, feces were submitted to direct, Kato and spontaneous sedimentation. The overall prevalence of intestinal parasites for the periods 1995-1996 and 2009-2013 was 52% and 62.9% respectively. In the first period, the helminths prevailed and the second, the Chromistas-Protozoa group turned more prevalent. For 1995-1996, the helminths Trichuris trichiura (24.2%) and Ascaris lumbricoides (19.5%) were more common; while for the period 2009-2013, the Chromista Blastocystis spp. was the most prevalent (47.6%), followed by protozoan Endolimax nana (17.7%). In all these cases the difference was significant (p <0.05) when the prevalence of both periods being compared. We conclude that there was a change in the prevalence of intestinal parasites in the study population: in the first period (1995-1996) dominated the helminths and the second (2009-2013) the Chromista Blastocystis spp. and protozoa.

Published
2015-08-07
How to Cite
1.
Devera R, Blanco Y, Amaya I. Prevalence of intestinal parasites in school children from Ciudad Bolívar, Venezuela: comparison between two periods. Kasmera [Internet]. 2015Aug.7 [cited 2024Nov.25];43(2):122-9. Available from: https://mail.produccioncientificaluz.org/index.php/kasmera/article/view/20466
Issue
Vol. 43 No. 2 (2015)
Section
Original Articles

Copyright (c) 2015 Rodolfo Devera, Ytalia Blanco, Iván Amaya

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