Host Susceptibility to Paralysis by the Tick <i>Dermacentor andersoni</i> Stiles (Acarina: Ixodidae)

Gregson, J. D.

doi:10.4039/ent90421-7

Cited by 18 publications

(5 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Humans are readily bitten by male and female D. andersoni (Gregson 1956;Kennedy and Newman 1986) and surprisingly, this instar has occasionally been removed from various ground-dwelling bird species (Cooley 1938;). Mule deer, moose, yellow-bellied marmots and Columbian ground squirrels are occasionally hosts for adults of D. andersoni (Brown 1944;Gregson 1958;Wilkinson 1965Wilkinson , 1970. In the laboratory, adults of D. andersoni have been successfully fed on mice and guinea pigs (Gregson 1960;Scott and Brown 1986), illustrating that this instar lacks host specificity.…”

Section: A C D Bmentioning

confidence: 99%

The Biological Survey of Canada: A Personal History

Danks¹

2017

View full text Add to dashboard Cite

Section: A C D Bmentioning

confidence: 99%

The Biological Survey of Canada: A Personal History

Danks¹

2017

View full text Add to dashboard Cite

“…This likely occurs in cows as these are usually older than 2 yr of age and are more likely to have had multiple exposures to ticks. Yearling animals are usually susceptible to paralysis (Gregson 1958) as they have typically had little exposure to ticks because spring calves are protected from paralysis by maternal grooming (Rich 1973). The incidence of the paralysis trait in nature may therefore be a result of interplay between balancing selection, the dose-dependent nature of paralysis, and some development of herd immunity.…”

Section: Discussionmentioning

confidence: 98%

Tick Paralysis Caused by <I>Dermacentor andersoni</I> (Acari: Ixodidae) is a Heritable Trait

Lysyk¹

2010

View full text Add to dashboard Cite

The heritability of the ability to cause paralysis was examined in crosses of virulent and avirulent Dermacentor andersoni (Stiles) (Acari: Ixodidae). Virulence was assessed using hamster bioassay. Paralysis was caused by the virulent parental strain but not by the avirulent parental strain. Four crosses were made: Avirulent female x Avirulent male (AA cross), Virulent female x Virulent male (VV cross), Avirulent female x Virulent male (AV cross), and Virulent female x Avirulent male (VA cross). The proportion of females that produced fertile egg masses was similar among the crosses; however, VV females produced fewer fertile eggs. This was attributed to the long-term laboratory colonization of the virulent strain. All crosses had similar levels of larval and nymphal engorgement and adult eclosion. The ability to cause paralysis was detected in progeny of all crosses except the AA cross. Both heterogeneous crosses caused paralysis, but the virulence was slightly less than for the VV cross. Virulence was similar among the AV and VA crosses, indicating that virulent males were as likely as females to pass the trait to progeny. Time to paralysis was faster for the VV cross compared with the heterogeneous crosses.

show abstract

“…Several cases are reported of engorged ticks being found during autopsy of children who passed away from unexplained paralytic illness. 14 This highlights the need for physicians to prioritize a detailed physical examination in all cases of paralysis or ataxia in children.…”

Section: Literature Discussionmentioning

confidence: 99%