Hyalomma impeltatum (Acari: Ixodidae) as a potential vector of malignant theileriosis in sheep in Saudi Arabia

El-Azazy, O.M.E.; El-Metenawy, T. M.; Wassef, Hilda Y.

doi:10.1016/s0304-4017(01)00468-x

Cited by 35 publications

(21 citation statements)

References 3 publications

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“…Malignant ovine theileriosis (MOT) was first described in Egypt in an imported animal from Sudan (Littlewood, 1915), and then reported in Iraq (Latif et al, 1977), India (Sisodia, 1981), Sudan (El Ghali & El Hussein, 1995), Turkey (Sayin et al, 1997), Iran (Spitalska et al, 2005), Saudi Arabia (El-Azazy et al, 2001) and the Sultanate of Oman (Tageldin et al, 2005;Shayan et al, 2011). However, it has not been reported in Jordan (Sherkov et al, 1977) or Israel (Pipano, 1991).…”

Section: Introductionmentioning

confidence: 99%

Theileria lestoquardi in Sudan is highly diverse and genetically distinct from that in Oman

Awad

Al-Hamidhi

Hussein

et al. 2018

Infection, Genetics and Evolution

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Malignant ovine theileriosis is a severe tick-borne protozoan disease of sheep and other small ruminants which is widespread in sub-Saharan Africa and the Middle East. The disease is of considerable economic importance in Sudan as the export of livestock provides a major contribution to the gross domestic product of this country. Molecular surveys have demonstrated a high prevalence of sub-clinical infections of Theileria lestoquardi, the causative agent, among small ruminants. No information is currently available on the extent of genetic diversity and genetic exchange among parasites in different areas of the country. The present study used a panel of T. lestoquardi specific micro- and mini-satellite genetic markers to assess diversity of parasites in Sudan (Africa) and compared it to that of the parasite population in Oman (Asia). A moderate level of genetic diversity was observed among parasites in Sudan, similar to that previously documented among parasites in Oman. However, a higher level of mixed-genotype infection was identified in Sudanese animals compared to Omani animals, consistent with a higher rate of tick transmission. In addition, the T. lestoquardi genotypes detected in these two countries form genetically distinct groups. The results of this work highlight the need for analysis of T. lestoquardi populations in other endemic areas in the region to inform on novel approaches for controlling malignant theileriosis.

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Section: Introductionmentioning

confidence: 99%

Theileria lestoquardi in Sudan is highly diverse and genetically distinct from that in Oman

Awad

Al-Hamidhi

Hussein

et al. 2018

Infection, Genetics and Evolution

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“…Fatal theileriosis in small ruminants, particularly sheep, has been described from Asia (Hooshmand-Rad and Hawa 1973;El-Azazy et al, 2001) and Africa (Tageldin et al, 1992). In the Sultanate of Oman, there are no published records of the disease.…”

mentioning

confidence: 98%

Theileriosis in sheep and goats in the Sultanate of Oman

Tageldin

Fadiya

Sabra

et al. 2005

Trop Anim Health Prod

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“…hirci to sheep in Saudi Arabia (El-Azazy et al, 2001). Antibodies to Rickettsia rickettsii (Lange et al, 1992) and kinetes of a Babesia spp.…”

Section: Xenopsylla Conformis Mycerinimentioning

confidence: 99%

Ectoparasite fauna of rodents collected from two wildlife research centres in Saudi Arabia with discussion on the implications for disease transmission

et al. 2015

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Highlights• Ectoparasite data was collected from 161 rodents at two locations in Saudi Arabia.• 771 ectoparasites were identified in 12 taxa.• Results are discussed in the context of disease transmission for the region. ABSTRACTThe majority of human pathogens are zoonotic and rodents play an important role as reservoirs of many of these infectious agents. In the case of vector-borne pathogens, rodent reservoirs not only act as a source of infection for vectors but also serve as hosts for the vectors themselves, supporting their populations. Current data on rodent-ectoparasite 2 relationships is limited in Saudi Arabia, however, this is needed to assess disease risk and the relative importance of different hosts for the maintenance of vector-borne pathogen cycles. In order to provide baseline data for the region that could be used to assess zoonotic disease risk, we collected and identified 771 ectoparasite specimens (ticks, fleas and mites) from 161 rodents at two wildlife research centres in Saudi Arabia and discuss our results in the context of possible zoonotic disease risk based on the hosts and vectors present. Graphical abstract

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Hyalomma impeltatum (Acari: Ixodidae) as a potential vector of malignant theileriosis in sheep in Saudi Arabia

Cited by 35 publications

References 3 publications

Theileria lestoquardi in Sudan is highly diverse and genetically distinct from that in Oman

Theileria lestoquardi in Sudan is highly diverse and genetically distinct from that in Oman

Theileriosis in sheep and goats in the Sultanate of Oman

Ectoparasite fauna of rodents collected from two wildlife research centres in Saudi Arabia with discussion on the implications for disease transmission

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