Faculty of Science

Epidemiology and Transmission of Lymphatic Filariasis in Southern Sudan

This study on Lymphatic Filariasis and its vectors has been carried out at Bahr El Jebal State (Juba and Terkaka towns) between the periods August 2004 – September 2004 and April 2005 – June 2005 . Mosquitoes , the vectors of this disease , were collected using Pyrethrum spray (Knock down ). This insect survey showed that Anopheles gambiae s.s. is the common species in Juba area but in...

Laboratory observations on the compatibility of Schistosoma mansoni and Schistosoma haematobium to their intermediate hosts from different parts of Sudan

This investigation was conducted to provide some aspects of parasite aggregation, cercarial productivity and dynamics as well as snails\\\\\\\' sensitivity and compatibility. The selected study areas are: Khartoum, Gezira, Gunaid, New Halfa and Nuba Mountains, where intermediate-host snails (Biomphalaria pfeifferi and Bulinus truncatus) and parasites (Schistosoma mansoni and Schistosoma...

Assessment Of Laboratory Microscopic Diagnosis Of Malaria In Khartoum And Gezira States

This study was designed to assess the laboratories microscopic diagnosis of malaria parasites in Khartoum State and Butana Locality, Gezira State. The protocol includes the comparison of thirty laboratories (Hospitals, Health centres and private laboratories) 13laboratoreis from Khartoum State and 17 laboratoreis from Butana Locality, Gezira State. The data from every laboratory were...

Studies on Some Effects of the Pesticide Endosulfan on the Nile Tilapia Oreochromis niloticus

The Nile Bulti Oreochromis niloticus which is one of top important economic species in the Nile system was used in investigating the toxicity of, the organochlorine insecticide, Endosulfan to fish. The selected species was exposed to a technical grade of Endosulfan comprising 7:3 alfa to Beta isomers. Exposure was under semi static conditions. Using concentrations of 10, 20, 30, 40 and 50 ppb....

Cytogenetic and Molecular Biology Studies On Two Monkeys (Cercopithecus Aethiops Aethiops (Linnaeus, 1758) and Erythrocebus Patas Pyrronotus (Schreber, 1775) (Family: Cercopithecidae)

The grivet monkey, Cercopithecus aethiops aethiops, and the patas monkey, Erythrocebus patas pyrronotus, were used in this study. Both C. aethiops aethiops and E. patas pyrronotus were found to be free of external parasites. Malaria parasites were found in the two species and the prevalence was higher in E.patas pyrronotus compared to C. aethiops aethiops. Cytogenetic data revealed...

Genetic Studies On The Leishmania Vector, Phlebotomus Spp. (Diptera: Psychodidae) From Sudan

Phlebotomine sand flies transmit viruses and bacteria, but are most widely known as vectors of several Leishmania species to man and animals. Leishmaniasis whether cutaneous leishmaniasis or visceral leishmaniasis, is considered as a fatal disease. The cytogenetic and molecular biology of sand fly species from three sub-genera: Phlebotomus, Sintonius and Sergentomyia (Diptera: Psychodidae)...

Establishment of Standard X-Ray Qualities to Be Used In Diagnostic Level at Ssdls

The objective of the present work is to modify x-ray machine (used by the secondary standard dosimetry laboratory in Sudan) to produce x-ray qualities suitable for the calibration at diagnostic level. It based on experimental evaluations. The importance of this study appears in development of protocols to calibrate the instruments used in diagnostic radiology in by good response of the...

Investigation of the Antimicrobial Activity Of Essential Oils Of Cymbopogon nervatus and Cuminum cyminum

The antifungal activity of eight essential oils, namely: Cyperus rotandus, Baswellia papyrifera, Eucalyptus camaldalensis, Cymbopogon schoenanathu, Citrus paradises, Cymbopogon nervatus, Ocimum basilicum and Cuminim cyminum was investigated using Agar Well Diffusion Assay on (SDA) medium. Two essential oils showed relatively high antifungal activity on the hyphal growth of Aspergillus niger and...

Biochemical, Serological and Molecular Characterization of Salmonella spp. Isolated from Poultry in Khartoum State

A total of 38 Salmonella isolates were recovered from 679 specimens collected within Khartoum State. The specimens included tissues, intestinal contents , eggs and swaps from poultry farms and vendors of asymptomatic poultry as well as poultry feed and drinking water from poultry farms watering systems. The isolates were confirmed to be Salmonella enterica subspecies enterica by biochemical...

Observations on Transmission Pressure of Schistosomiasis in El Gezira Agricultural Scheme, Sudan

This investigation was conducted in Gezira Scheme to provide some elements of analytical epidemiology with special emphasis on parasite aggregation and dynamics related to the knowledge, attitude and practice of the people. In the parasitological survey, all villagers (seven village) and school children (13 schools) were examined microscopically for Bilharzia. In addition, a designed...