Gastrointestinal parasites and ectoparasites biodiversity of Rattus rattus trapped from Khan Younis and Jabalia in Gaza strip, Palestine

This study identified the zoonotic endo-parasites and ecto-parasites of Rattus rattus. A total of 41 rats of house [black] rat and Norway [brown] rat were trapped from two regions of Gaza strip. After dissection, isolated protozoa, nematodes and cestodes were identified respectively according standard keys. The results showed that prevalence of intestinal parasites among rats was 24/41 [58.5%] and males were infected more than females. A high prevalence of protozoa was in autumn compared to other seasons. The intestinal parasites were encountered: G. lamblia 6 [14.6%]; E. histolytica/dispar [17.1%]; Isospora 4 [9.8%]; Acanthocephala 1 [2.4%]; Syphacia obvelata 6 [20%]; Heligmonoides josephi 3[10%]; Strongyloides egg 1 [2.4%]; Hymenolepis diminuta 15 [36.6%]. The insects were Xenopsylla cheopis 7[17.1%]; Polyplax spinulosa 3 [7.3%]

Levels of helminthic infections in the quails coturnix coturnix from kingdom of Saudi Arabia

The present study aims to clarify the difference of the intensity of parasitic infection between the domestic quails Coturnis coturnis and the migrant ones. A total of 60 domesticated and 60 migratory quails were investigated during the migration season September-November 2009 for intestinal parasites. Investigations revealed that both domestic and migrant quails were susceptible to infection with three helminth parasites; a nematode [Heterakis gallinaruni], and two cestodes [Choanotae-nia infundibulum and Hymenolepis sp.]. The prevalence of infection in the migratory males was higher than the female ones, the opposite results was obtained for the domestic birds. The differences in the prevalence were found to be statistically significant in case of the domestic birds. Single infection showed the highest prevalence followed by the double infection and finally the triple infection. The mean intensity of infection in the female domestic and migrant C. coturnix was higher than male

Giardíase e helmintíases em crianças de creches e escolas de 1§ e 2§ graus (públicas e privadas) da cidade de Mirassol (SP, Brasil) / Giardiasis and helminthiasis in children of both public and privative day-care centers and junior and high schools in the city of Mirassol, Säo Paulo State, Brazil

O presente trabalho mostrou freqüências diferentes de parasitoses intestinais (giardíase e helmintíases) entre crianças de pré-escolas e de escolas de l§ e 2§ Graus, públicas e privadas. Pesquisou-se 199 indivíduos, sendo 96 pertencentes às instituiçöes públicas e 103 pertencentes às instituiçöes particulares. Nas instituiçöes públicas as freqüências de giardíase foram maiores que nas instituiçöes privadas. Para as helmintíases, as freqüências foram semelhantes entre as creches, porém maiores na escola pública em relaçäo à particular. Indicadores do nível sócio-econômico, de escolaridade, de saneamento básico, como determinantes de parasitose intestinal, evidenciaram que as maiores freqüências de parasitoses ocorreram tanto entre as crianças de baixa renda quanto entre as que tinham pais com nível de escolaridade mais baixo. Também a origem das hortaliças foi um fator significativo para determinaçäo destas parasitoses

Effect of mercury on the immune response and mean intensity of Hymenolepis Nana infection in mice

The effect of mercury on selected immunological parameters was studied in mice with experimental H. nana infection. T-lymphocytes and serum protein changes in mice treated for varying duration with mercuric chloride [HgCl2] and subsequently infected with 1000 H. nana eggs were compared with their counterpart controls: an only treated and an only infected groups. Decreased values of T-lymphocytes beta and gamma globulins in the mercury-treated control group indicate suppression of immune response by mercury. The subsequent infection of HgCl2-intoxicated animals elevated the studied immunological parameters along with higher worm recoveries in comparison with infected non-intoxicated mice, but these immunological parameters remained significantly suppressed

Urban helminthiasis in two socioeconomically distinct Costa Rican communities

Se investigó la prevalencia de Ascaris lumbricoides. Trichiuris trichiura e Hymenolepis nana em dos comunidades adyacentes pero con nivel socioeconómico diferente, San José, Costa Rica. Se trató de un caserío precario con mala infraestructura sanitaroa y un barrio con buenas condiciones higiénicas. El primero mostró una mayor prevalencia de las helmintiasis investigadas. El grupo etario de menores de 14 años del precario, fue más afectado por A. lumbricoides e H. nana que los adultos, patrón no observado con T. trichiura. Estos resultados indican la necesidad de incluir las condiciones socioeconómicas como parámetro de análisis, cuando se estudia la prevalencia de helmintiasis intestinales en comunidades urbanas, a fin de obtener un perfil de las parasitosis más realista