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Abstract

The correspondents comment on the paper by D. A. Wassall on the use of an ELISA for the serodiagnosis of Dictyocaulus viviparus bronchitis in cattle (Veterinary Record (1991) 129 (16) 353-355). There is a reply by Wassall.

Author(s)
Duncan, J. L.; Gilleard, J. S.; McKeand, J. B.
Citation
Veterinary Record, 1992, 130, 2, pp 39
Abstract

Antibody responses to the surface-exposed antigens of living Dictyocaulus viviparus larvae and adult worms were measured by quantitative immunofluorescence using sera from calves infected with, or vaccinated against, the parasite. In infected animals, the sheath surface of third-stage (L3), which...

Author(s)
McKeand, J. B.; Duncan, J. L.; Urquhart, G. M.; Kennedy, M. W.
Citation
Veterinary Parasitology, 1996, 61, 3/4, pp 287-295
Abstract

MAb 2A6 bound to the surface of the Dictyocaulus viviparus L3 sheath and identified a molecule which is highly antigenic in both infected and vaccinated cattle. Immunogold electron microscopy revealed that the antibody binds to a highly stable surface coat overlying the epicuticle of the L3 sheath. ...

Author(s)
Gilleard, J. S.; Duncan, J. L.; Tait, A.
Citation
Parasitology, 1995, 111, 2, pp 193-200
Abstract

Monoclonal antibodies (MAbs) to the Dictyocaulus viviparus L3 cuticle and sheath surfaces were generated in order to define antigens present at the host-parasite interface of infective larvae. Three MAbs generated against the surface of the infective L3 cuticle bound to a phosphorylcholine-like...

Author(s)
Gilleard, J. S.; Duncan, J. L.; Tait, A.
Citation
Experimental Parasitology, 1995, 80, 3, pp 441-453
Abstract

Work in Scotland which indicated that outbreaks of parasitic bronchitis (Dictyocaulus viviparus) in calves can arise from larvae which have overwintered in the soil is recapitulated [see Hm/A 48, 6091].

Author(s)
Duncan, J. L.; Urquhart, G. M.
Publisher
Martinus Nijhoff for the Commission of the European Communities., The Hague, Netherlands
Citation
Epidemiology and control of nematodiasis in cattle. An animal pathology Workshop in the CEC Programme of Coordination of Agricultural Research, Royal Veterinary and Agricultural University, Copenhagen, Denmark, 4-6 February 1980. (Current Topics in Veterinary Medicine and Animal Science Vol.9.), 1981, pp 241-244
Abstract

The adult ES products of Dictyocaulus viviparus are a source of protective antigens against challenge in the guineapig laboratory model. High levels of acetylcholinesterase (AChE) activity are present in these products and these enzymes are immunogenic in infected cattle. The potential role of...

Author(s)
McKeand, J. B.; Knox, D. P.; Duncan, J. L.; Kennedy, M. W.
Citation
International Journal for Parasitology, 1995, 25, 7, pp 829-837
Abstract

Somatic extracts and excretory/secretory (ES) products of the adult stage of Dictyocaulus viviparus were examined for acetylcholinesterase (AChE) activity. Both were found to contain activity which had an optimum pH of 9.5, however, the adult ES products contained over 200 times more AChE activity...

Author(s)
McKeand, J. B.; Knox, D. P.; Duncan, J. L.; Kennedy, M. W.
Citation
International Journal for Parasitology, 1994, 24, 4, pp 501-510
Abstract

Parasite preparations were examined for their ability to induce protective immunity against Dictyocaulus viviparus in guineapigs. Dunkin-Hartley strain guineapigs were immunized with somatic extracts of adult parasites, somatic extracts of third stage larvae or excretory/secretory (ES) products...

Author(s)
McKeand, J. B.; Knox, D. P.; Duncan, J. L.; Kennedy, M. W.
Citation
International Journal for Parasitology, 1995, 25, 1, pp 95-104
Abstract

Outbred Dunkin-Hartley and inbred strain 2 and strain 13 guineapigs were immunized with Dictyocaulus viviparus adult ES products prior to challenge with 3rd-stage larvae. Antibody responses of the 3 strains to adult ES products and the acetylcholinesterase (AChE) isoforms which they contain were...

Author(s)
McKeand, J. B.; Knox, D. P.; Duncan, J. L.; Kennedy, M. W.
Citation
Parasite Immunology, 1994, 16, 5, pp 251-260
Abstract

In a number of controlled trials in cattle using experimental infections, Netobimin, administered orally at 7.5 mg/kg showed efficacies of 90-96%, 98-100% and 88-97% against adult Ostertagia ostertagi, Dictyocaulus viviparus and Cooperia oncophora, respectively, while larvicidal activity, as...

Author(s)
Duncan, J. L.; Armour, J.; Bairden, K.
Citation
Proceedings of the 14th World Congress on Diseases of Cattle, Dublin, 1986, 1, pp 166-169

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