Contamination of vegetables sold in markets with helminth eggs in Zaria metropolis, Kaduna State, Nigeria

Occurrence of parasite eggs and oocysts in commonly consumed vegetables collected from selected markets in Zaria, Kaduna State Nigeria

“…Based on vegetable types, spinach (Spinacia oleracea) commonly called "aleho" in the local parlance, was found to have the highest occurrence of parasite eggs and oocysts. This agrees with the findings of Uga et al (2009) and Maikai et al (2012). Uga et al (2009) showed that contamination is usually high in leafy vegetables followed by root and fruity vegetables.…”

“…This study also showed that vegetables purchased from Dan-magaji market had higher occurrence of parasite eggs and oocysts (51.25%) followed by Tudun-wada (49.38%), Zaria city and Sabongari (48.75%) while Samaru market had the least parasite eggs and oocysts occurrence at 41.88%. This is in contrast to Maikai et al (2012) who showed that vegetables from Sabongari market had the highest contamination. The differences observed may be attributed to the fact that Maikai et al (2012) did not include Dan-Magaji and Tudun-Wada markets in their study and hence may not have observed the occurrence above.…”

“…This is in contrast to Maikai et al (2012) who showed that vegetables from Sabongari market had the highest contamination. The differences observed may be attributed to the fact that Maikai et al (2012) did not include Dan-Magaji and Tudun-Wada markets in their study and hence may not have observed the occurrence above. Also, it had been observed that there was no potable water supply in Dan-Magaji and Tudun-Wada markets and these vegetables were washed with water from wells and water from water vendors in which the sources are unknown.…”

“…The sample size was determined according to Mugo (2008) using the formula: N=Z 2 Pq d 2 z= appropriate value for the standard normal deviation for the desired confidence 1.96 p= prevalence which is 57.8% (Maikai et al, 2012) q=1-p d= desired absolute precision=0.05 N= 1.96 x 0.578 x (1-0.578) 0.05 = 0.9370 0.0025 = 374.81 However, 400 samples each were collected during the rainy and dry periods, respectively.…”

Prevalence of parasitic contamination in fast food salads in Ahvaz, southwest of Iran

“…In recent years, studies carried out in countries have shown that the consumption of uncooked vegetables and fruits without the suitable washing or peeling represents an important potential for the extension of parasitic infections [4]. On the other hand, fresh vegetables are an important element of healthy diet [5] and at some countries, vegetables are a significant part of the diet. Therefore, the lack of the hygienic standards in the kitchen of organizations like hospitals, schools, hotels and restaurants, can lead to the widespread of parasitic infections to humans [6].…”