1. bookVolume 65 (2021): Issue 1 (March 2021)
Journal Details
License
Format
Journal
eISSN
2453-7837
First Published
30 Mar 2016
Publication timeframe
4 times per year
Languages
English
Open Access

Occurrence of Cryptosporidium Oocysts and Helminth Ova on Dried Crayfish (Procambarus clarkii) Sold in Kaduna State, Nigeria

Published Online: 06 Apr 2021
Volume & Issue: Volume 65 (2021) - Issue 1 (March 2021)
Page range: 29 - 36
Received: 21 Sep 2020
Accepted: 16 Dec 2020
Journal Details
License
Format
Journal
eISSN
2453-7837
First Published
30 Mar 2016
Publication timeframe
4 times per year
Languages
English
Abstract

Cryptosporidium spp. and helminths are responsible for diarrhoal illness in humans and many other animals. The transmission routes of these parasites suggest a risk for human infection through contaminated foods. In order to determine the occurrence of Cryptosporidium oocysts and helminth ova on dried crayfish (Procambarus clarkii) sold in Zaria and Kaduna Central market, Kaduna State, 100 crayfish samples were examined using the modified Ziehl-Neelsen staining technique for Cryptosporidium oocyst and the flotation technique for helminth ova. The measurements of the oocysts from the positive samples were estimated by using a calibrated microscope eyepiece. The prevalence of Cryptosporidium oocysts in dried crayfish was 20.0 % while the location-based prevalence was 43.3 %, 5.0 %, and 12.0 % for Sabo, Samaru and Kaduna central market, respectively. Micrometry revealed that the oocysts size ranged from 3.68 µm to 4.7 µm. Also, the prevalence of helminth ova in dried crayfish was 19 %, while the specific prevalence based on location showed a higher prevalence in Sabo (30.0 %) than in Kaduna central market (18.0 %) and Samaru (5.0 %). The helminth eggs recovered from this study included: Toxocara spp. (4.0 %), Ascaris spp. (7.0 %), Trichuris spp. (4.0 %), Schistosoma spp. (2.0 %), Ancylostoma spp. (1.0 %), and Capillaria spp. (1.0 %). The analysis of the questionnaires revealed that 71 (71.0 %) of the respondents ate uncooked cray-fish and 44.0 % used their bare hands to handle the cray-fish. There was no statistically significant association (P > 0.05) between the prevalence of Cryptosporidium oocysts or helminth ova and the locations sampled. This study has shown that dried crayfish obtained from markets within the study area were contaminated with parasite ova and oocysts, thus public enlightenment on the dangers of the consumption of raw or undercooked dried crayfish should be well publicized.

Keywords

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