Spatiotemporal trends in cattle lungworm disease (Dictyocaulus viviparus) in Great Britain from 1975 to 2014

BackgroundClinical disease caused by the bovine lungworm (Dictyocaulus viviparus) causes significant welfare and economic problems for the livestock industry. Anecdotal reports suggest that the number of clinical cases has increased, particularly in Northern England and Scotland. However, these spat...

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Vydáno v:	Veterinary record Ročník 186; číslo 19; s. 642
Hlavní autoři:	McCarthy, Catherine, van Dijk, Jan
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	England BMJ Publishing Group Limited 27.06.2020 Blackwell Publishing Ltd BMJ Publishing Group
Témata:	Animals Bias Cattle Cattle Diseases - epidemiology Cattle industry Dictyocaulus (lungworm) Dictyocaulus Infections - epidemiology Dictyocaulus viviparus disease surveillance England Epidemiology Gastroenteritis Histopathology incidence Laboratories livestock and meat industry lungworms Milk production Original Research ostertagia Parasites Parasitic diseases parasitology Pathology Retrospective Studies Scotland Spatio-Temporal Analysis Trends United Kingdom - epidemiology Veterinary medicine United Kingdom England Scotland United Kingdom > UK Wales ostertagia cattle disease surveillance incidence Dictyocaulus (lungworm) parasitology
ISSN:	0042-4900, 2042-7670, 2042-7670
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Shrnutí:	BackgroundClinical disease caused by the bovine lungworm (Dictyocaulus viviparus) causes significant welfare and economic problems for the livestock industry. Anecdotal reports suggest that the number of clinical cases has increased, particularly in Northern England and Scotland. However, these spatiotemporal changes have not been quantified and the current impact that the disease is having across Great Britain remains unclear.MethodsHere, we report a retrospective analysis of the spatial distribution, seasonality and age of lungworm cases reported by the Veterinary Investigation Diagnosis Analysis database from 1975 to 2014.ResultsA sharp overall increase in the dictyocaulosis diagnostic rate (DR, cases / 1000 submissions) was observed, with, for example, median 2010–2014 DR 3.5 times as high as 1980–1984 DR. Such increases were most pronounced for Scotland, which became the region with the highest proportion of cases by 2009. Cases were increasingly diagnosed during the winter months (December–February).ConclusionThe apparent spatiotemporal changes in lungworm epidemiology pose new challenges to cattle farmers in Great Britain. Farmers and veterinarians need to remain vigilant for this disease and consider it as a possible cause for milk production losses at any time of the year. Awareness levels may have to be raised particularly in northern England and Scotland.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23
ISSN:	0042-4900 2042-7670 2042-7670
DOI:	10.1136/vr.105509