Incidence and prevalence of Eimeria infection among the hedgehog, Hemiechinus auritus in Yemen

Fecal samples of ten hedgehogs, Hemiechinus auritus from Taiz Governorate, Yemen were examined for coccidian parasites. Four [40%] were infected with Eimeria spp. Comparison of oocyst's criteria with other species of Eimeria indicated a new eimerian, E. yeminii n.sp. besides the previously described species, E. auriti Mirza, 1970 reported in Iraq. Oocysts of E. yeminii n.sp. are ovoidal to ellipsoidal, measuring 30x24.5 micro m [27-36x20-28]. The outer boundary is bilayered with a light reddish colour and perforated by a micro-pyle. Oocyst residuum and polar granules are present. Sporocysts are spherical in shape 10 x7.5 micro m [11-12.2x10-11.2] with granular residuum and Stieda body. Sporozoites are elongate, lying length-wise to the sporocyst long axis. Sporulation takes place within 3-4 days at - 26°C. E. auriti Mirza, 1970 is characterized by subspherical oocysts measuring 20 x 17 [22-26x16-19.5] micro m, a micropyle and oocyst residuum. The oocyst wall is bilayered, smooth and greenish in colour. Sporocysts are subspherical, measuring 9.0x8.3 [8.5-1 x7.5-8] micro m with granular residuum and Stieda body. Fully sporulated oocysts are observed within 48 h at - 26°C

Monitoring fresh water contamination with parasites in Taiz, Yemen

This study was conducted during the period of October 2003 to May 2004, in Taiz city and different rural regions of Taiz Governorate, Republic of Yemen. The objective of this work was to detect contamination of fresh water sourced with parasites, 145 Fresh water samples were collected from washing and drinking water sources, and investigated for the presence of parasites, Water samples were filtered, concentrated by centrifugation and examined microscopically. The highest prevalence was 59/145 [40.7%], at Al-Maafer area 12/16 [75%] and Warazan, Al-Dhabab and Saber area was 31/50 [62%]. Most water sampoles were positive for Giardia lamblia, Entamoeba histolytica, E. coli, Ascaris lumbricoides, Strongyloides stercoralis, Schistosma sp. And Trichuris trichiura. The lower prevalence found with Hymenolepis nana, while Taenia saginata, Enterobius vermicularis and Ancylostoma doudenale were found in lowest frequencies. These results clearly indicate that most fresh water sources in Taiz Governorate were contaminated with protozoan and helminthes parasites