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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Ticks and tick-borne viruses from livestock hosts in arid and semiarid regions of the eastern and northeastern parts of Kenya
Journal of Medical Entomology, Volume 51, No. 1, Year 2014
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Description
Biodiversity and relative abundance of ticks and associated arboviruses in Garissa (northeastern) and Isiolo (eastern) provinces of Kenya were evaluated. Ticks were collected from livestock, identified to species, pooled, and processed for virus isolation. In Garissa, Rhipicephalus pulchellus Gerstäcker (57.8%) and Hyalomma truncatum Koch (27.8%) were the most abundant species sampled, whereas R. pulchellus (80.4%) and Amblyomma gemma Dönitz (9.6%) were the most abundant in Isiolo. Forty-four virus isolates, comprising Dugbe virus (DUGV; n = 22) and Kupe virus (n = 10; Bunyaviridae: Nirovirus), Dhori virus (DHOV; n = 10; Orthomyxoviridae: Thogotovirus), and Ngari virus (NBIV; n = 2; Bunyaviridae: Orthobunyavirus), were recovered mostly from R. pulchellus sampled in Isiolo. DUGV was mostly recovered from R. pulchellus from sheep and cattle, and DHOV from R. pulchellus from sheep. All Kupe virus isolates were from Isiolo ticks, including R. pulchellus from all the livestock, A. gemma and Amblyomma variegatum F. from cattle, and H. Truncatum from goat. NRIV was obtained from R. pulchellus and A. gemma sampled from cattle in Isiolo and Garissa, respectively, while all DHOV and most DUGV (n = 12) were from R. pulchellus sampled from cattle in Garissa. DUGV was also recovered from H. Truncatum and Amblyomma hebraeum Koch from cattle and from Rhipicephalus annulatus Say from camel. This surveillance study has demonstrated the circulation of select tick-borne viruses in parts of eastern and northeastern provinces of Kenya, some of which are of public health importance. The isolation of NRIV from ticks is particularly significant because it is usually known to be a mosquito-borne virus affecting humans. © 2014 Entomological Society of America.
Authors & Co-Authors
Lutomiah, Joel J.L.
Kenya, Nairobi
Kenya Medical Research Institute
Musila, Lillian A.
Kenya, Nairobi
Kenya Medical Research Institute
Makio, Albina
Kenya, Nairobi
Kenya Medical Research Institute
Ochieng, Caroline Apondi
Kenya, Nairobi
Kenya Medical Research Institute
Koka, Hellen
Kenya, Nairobi
Kenya Medical Research Institute
Chepkorir, Edith
Kenya, Nairobi
International Centre of Insect Physiology and Ecology Nairobi
Mutisya, James
Kenya, Nairobi
Kenya Medical Research Institute
Mulwa, Francis
Kenya, Nairobi
International Centre of Insect Physiology and Ecology Nairobi
Khamadi, Samoel Ashimosi
Kenya, Nairobi
Kenya Medical Research Institute
Miller, Barry R.
United States, Atlanta
National Center for Emerging and Zoonotic Infectious Diseases
Bast, Joshua D.
United States, Arlington
United States Army
Schnabel, David C.
United States, Silver Spring
Walter Reed Army Institute of Research
Wurapa, Eyako K.
Kenya, Nairobi
Kenya Medical Research Institute
Sang, Rosemary C.
Kenya, Nairobi
Kenya Medical Research Institute
Statistics
Citations: 25
Authors: 14
Affiliations: 5
Identifiers
Doi:
10.1603/ME13039
ISSN:
00222585
Study Locations
Kenya