Prevalence of <i>Hymenolepis nana</i> in Indigenous Tapirapé Ethnic Group from the Brazilian Amazon

Abstract

A total of 1528 stool samples were examined during a survey of intestinal parasites in 542 members of the Tapirapé ethnic group (279 females and 263 males), who live in the Brazilian Amazon region of Mato Grosso. Overall, 542 individuals from six indigenous villages were enrolled of whom 45 (8.3%) were positive for Hymenolepis nana based on analysis by microscopy of fecal concentrates. H. nana was more prevalent in male individuals (77.8%) as compared to females (22.2%). Moreover, males aged under 15 years have been associated with positivity for H. nana (P = 0.02). This study is the first report of the prevalence of H. nana in members of the indigenous Tapirapé ethnic group from the Brazilian Amazon.

Prevalence of Hymenolepis nana among primary school children in Burkina Faso

“…Kpoda et al (2015) found in Burkina Faso the eggs of H. nana in water used for irrigation. The absence of a fountain, the lack of hygiene, and the presence of people already infected with H. nana in the concession are factors that contribute to the maintenance of transmission (Mason, 1994;Al-Shammari et al, 2001;Huda Thaher, 2012;Magalhaes Soares et al, 2013;Malheiros et al, 2014). At home overcrowding in concessions is a factor that would increase the risk of contamination of H. nana eggs (Magalhaes Soares et al, 2013).…”

“…Hymenolepis nana is the most prevalent parasite tapeworms (Magalhaes et al, 2013). It is a cosmopolitan parasite by its distribution and it is more prevalent in warm climates (Malheiros et al, 2014). It is endemic in Asia, Africa, Eastern and Southern Europe and Brazil (Huda Thaher, 2012;Malheiros et al, 2014).…”

“…It is a cosmopolitan parasite by its distribution and it is more prevalent in warm climates (Malheiros et al, 2014). It is endemic in Asia, Africa, Eastern and Southern Europe and Brazil (Huda Thaher, 2012;Malheiros et al, 2014). Infections due to H. nana are often asymptomatic when the level of infection is low (Mirdha and Samantray, 2002;Huda Thaher, 2012).…”

Role of society and culture in the epidemiology and control of foodborne parasites

“…Currently, only a few hundred cases have been reported globally; however, prevalence studies have shown rates in excess of 8% in the Brazilian Amazon region of Mato Grosso (Malheiros et al, 2014). The flour beetle, Tribolium castanean is an intermediate host for the tapeworm Hymenolepis diminuta.…”

In vitro and in vivo anthelmintic activity of seed extract of Coriandrum sativum compared to Niclosamid against Hymenolepis nana infection

“…This worm is the only cestode capable of completing its cycle without an intermediate host. Infection is most commonly acquired from eggs in the feces of another infected individual, which are transferred by contamination in food (Malheiros et al 2014). Since ancient times, plants and herbal preparations have been used as medicine.…”