| susceptibility of mosquito and tick cell lines to infection with various flaviviruses. | the genus flavivirus consists of more than 70 virus species and subtypes, the majority of which are transmitted by mosquitoes or ticks, although some have no known vector (nkv). the ability of these viruses to infect cultured cells derived from mosquito or tick species offers a useful insight into the suitability of such vectors to harbour and replicate particular viruses. we undertook a comparative study of the susceptibility of mammalian vero cells, a clonal mosquito cell line (c6/36) and rece ... | 2004 | 15347394 |
| [isolation of thogoto virus from amblyomma and boophilus ticks in central africa]. | a survey has been carried out in the cameroons and the central african republic about the role of the ticks in the ecology of arboviruses in central africa. attempts for virus isolation were made for 12,678 amblyomma variegatum, 3,276 boophilus decoloratus and 1,769 boophilus annulatus, by inoculation into suckling mice. from 968 pools which were inoculated, 20 yielded isolates which were identified to thogoto virus. considering previously published results concerning tick-borne virus isolations ... | 1976 | 1037382 |
| heterogeneity in the effect of different ixodid tick species on human natural killer cell activity. | tick saliva plays a vital role in blood-feeding, including manipulation of the host response to tick infestation. furthermore, a diverse number of tick-borne pathogens are transmitted to vertebrate hosts via tick saliva, some of which exploit the immunomodulatory activities of their vector's saliva. we report that salivary gland extracts (sge) derived from dermacentor reticulatus adult ticks induce a decrease in the natural killer (nk) activity of effector cells obtained from healthy human blood ... | 2002 | 11856443 |
| ticks and tick-borne viruses from livestock hosts in arid and semiarid regions of the eastern and northeastern parts of kenya. | 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 gerstacker (57.8%) and hyalomma truncatum koch (27.8%) were the most abundant species sampled, whereas r. pulchellus (80.4%) and amblyomma gemma donitz (9.6%) were the most abundant in isiolo. forty-four vi ... | 2014 | 24605478 |
| tick-borne viruses. | at least 38 viral species are transmitted by ticks. virus-tick-vertebrate host relationships are highly specific and less than 10% of all tick species (argasidae and ixodidae) are known to play a role as vectors of arboviruses. however, a few tick species transmit several (e.g. ixodes ricinus, amblyomma variegatum) or many (i. uriae) tick-borne viruses. tick-borne viruses are found in six different virus families (asfarviridae, reoviridae, rhabdoviridae, orthomyxoviridae, bunyaviridae, flaviviri ... | 2004 | 15938513 |