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seasonal dynamics of hyalomma (hyalommina) arabica (acari: ixodidae) in the al-sarawat mountains of makkah province, saudi arabia.the seasonal dynamics of adults of hyalomma (hyalommina) arabica pegram, hoogstraal & wassef on goats and sheep, and of the immatures on an acomys mouse, were studied in the al-sarawat mountain range of makkah province, saudi arabia, from december 1984 through november 1987. adults and immatures of h. arabica were found on hosts in the fall, winter, and spring (september-may) with a peak in numbers in winter (december-february). during the summer, adults were rarely found on hosts. populations o ...19902388249
hyalomma (hyalommina) arabica sp. n. parasitizing goats and sheep in the yemen arab republic and saudi arabia.hyalomma (hyalommina) arabica sp. n. is described from 62 adults (29 males, 33 females) taken throughout the year from 23 goats and two sheep, mostly at 200 m altitude in the southern tihama foothills of ta'izz province, yemen arab republic. one female from a goat at 2,300 m altitude in this province may have attached to the host elsewhere and a male from mecca, saudi arabia, was on a goat imported from an unknown source for the traditional religious pilgrimage feast. we postulate that the origi ...19827077440
seasonal changes and inhibited development of the abomasal nematodes of sheep and goats in saudi arabia.from august 1991 to july 1992, a total of 48 abomasa from sheep and 48 from goats were examined at the jeddah abattoir for the presence of adult and larval nematodes. twenty-three of the sheep (47.9%) and 21 of the goats (43.8%) were infected with nematodes, a total of eight species being found. haemonchus contortus and marshallagia marshalli appeared to be the most important parasites. other species were less prevalent: trichostrongylus axei, camelostrongylus mentulatus, parabronema skrjabini, ...19957676605
isolation of a flavivirus related to the tick-borne encephalitis complex from human cases in saudi arabia.a flavivirus related to the tick-borne encephalitis complex was isolated from the blood of 6 male butchers, aged 24-39 years, in jeddah, saudi arabia in november and december 1995. two of the patients died and the other 4 recovered completely. four more patients, 3 males and 1 female, were diagnosed serologically by immunoglobulin m capture enzyme-linked immunosorbent assay and seroconversion in acute and convalescent blood samples examined by indirect immunofluorescent test using vero cells inf ...19979196762
crimean-congo haemorrhagic fever virus infection in the western province of saudi arabia.in 1990, an outbreak of suspected viral haemorrhagic fever involving 7 individuals occurred in mecca in the western province of saudi arabia. congo-crimean haemorrhagic fever (cchf), not previously known to be present in saudi arabia, was incriminated. a study of the epidemiology of this virus was therefore carried out in mecca, and in nearby jeddah and taif in 1991-1993; 13 species of ixodid ticks (5 hyalomma spp., 5 rhipicephalus spp., 2 amblyomma spp., 1 boophilus sp.) were collected from liv ...19979231193
anti-toxoplasma antibodies in butchers and slaughtered sheep and goats in jeddah municipal abattoir, saudi arabia.toxoplasma gondii is a zoonotic parasite of world-wide distribution. it is more or less endemic in all countries of the middle east. in jeddah municipal abattoir, anti-toxoplasma igg was found to be 39% in sheep and 28% in goats as indicated by ihat. on the other hand, anti-toxoplasma igg and igm in butchers were 80% and 20% respectively, as indicated by the micro-elisa. the risk of toxoplasma transmission particularly, from meat inadequately cooked was discussed.19979425834
detection of crimean-congo haemorrhagic fever virus antibodies in humans and imported livestock in saudi arabia.a survey of crimean-congo haemorrhagic fever virus antibody, using the reversed passive haemagglutination inhibition test, was carried out in saudi arabia on sera from imported livestock at jeddah seaport, as well as humans who had contact with imported animals on farms and in quarantine stations. antibodies were detected in 3/354 (0.8%) humans, 88/2162 (4.1%) sheep, 14/432 (3.2%) goats and 1/182 (0.6%) cattle. camel and horse sera were negative. the sudanese small ruminants had the highest sero ...19979463660
patent infection with setaria digitata in goats in saudi arabia.a survey was carried out on saudi sheep and goats during 1995, at the veterinary diagnostic laboratory, jeddah, to study setaria infection in small ruminants in saudi arabia. setaria digitata worms were detected in the abdominal cavity of 5 out of 48 goats (10.4%). sheep were not found to be infected. all infected goats were adults of 2-4 years of age and originating from the jeddah, mecca and al-leith areas. four cases were recorded during january-march and one during august. no lesions due to ...199910321587
natural dicrocoeliasis in imported sheep, jeddah, saudi arabia.dicrocoelium dendriticum is a common liver fluke of sheep and other herbivorous animals. examination of imported sheep showed 40% in somalian sheep, 26% in turkish and 2% in native breed sheep. the results were discussed with stress on epidemiology.199910605513
hyalomma impeltatum (acari: ixodidae) as a potential vector of malignant theileriosis in sheep in saudi arabia.little is known about tick-borne diseases in saudi arabia, particularly regarding the prevalence of theileriosis in small ruminants. this survey studied the potential vectors of malignant theileriosis in saudi arabian sheep. blood, lymph node and tick samples were collected from animals being treated or necropsied at the veterinary diagnostic laboratory in jeddah, makkah (western region), and bureida, al-qasim (central region). blood and lymph node smears were prepared and examined for theileria ...200111511417
alkhumra virus infection, a new viral hemorrhagic fever in saudi arabia.four patients with typical acute viral hemorrhagic fever were identified in the holy city of makkah, saudi arabia, between 8 and 23 february 2001, the hajj (pilgrimage) period of that year. tests for rift valley fever (rvf), crimean-congo hemorrhagic fever (cchf), and dengue were negative. blood specimens were sent to the centres for disease control and prevention (cdc), atlanta for viral culture and testing for other hemorrhagic fever viruses. a new flavivirus closely related to the tick-borne ...200516038757
anti-fasciola antibodies among rodents and sheep in jeddah, saudi arabia.a total of 20 imported sheep were examined for fascioliasis natural infection by kato thick smear and by fasciola-indirect haemagglutination test (ihat). stool examination revealed infection in 13/20 (65%), but ihat identified 11/20 (55%). so, the sensitivity was 84.5%. also, five species of rodents trapped within or nearby the infected sheep farm by ihat showed positive reactions of in rattus rattus (22.4%), r. norvegicus (16.7%), meriones crassus (11.8%), juculus jaculus (zero%), acomys c. dim ...200516083078
risk of a rift valley fever epidemic at the haj in mecca, saudi arabia.rift valley fever (rvf) is a zoonotic disease that affects both humans and domestic animals. in humans, it can cause a fatal haemorrhagic fever disease. when domestic animals such as sheep, goats, camels and cattle are infected, the infection may or may not be accompanied by clinical signs of disease. both sub-clinical and clinically affected animals present a hazard as a source of infection for humans. the risk of infection is greatest at the time of killing, when aerosols of infected blood may ...200616796043
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