Journal Article


T de Waal
A Johnson
M Sheehan
J P Cassidy
P Kelly
J O'Shaughnessy
C Carty
A Lee
E G Ryan



ireland follow up bovine irish dairy herd local level milk yield poor performance weight loss

Bovine besnoitiosis (Besnoitia besnoiti) in an Irish dairy herd. (2016)

Abstract Bovine besnoitiosis, caused by the apicomplexan protozoan parasite Besnoitia besnoiti, was diagnosed in an Irish dairy herd. This is the first diagnosis of besnoitiosis in Ireland or the UK and the most northerly European outbreak yet described. The diagnosis occurred following a farm investigation in June 2015 into an unusual dermatological problem that had been ongoing since 2010. On an annual basis, 1-2 per cent of cows in the herd exhibited clinical signs, including skin thickening, alopecia, weight loss and poor performance. Others displayed pyrexia, limb oedema, respiratory distress and reduced milk yield. Histopathological examination of skin revealed granulomatous and eosinophilic dermatitis, with characteristic intradermal protozoal cysts, consistent with cutaneous besnoitiosis. Follow-up serological testing and clinical examination of cattle (n=228) on the farm found that 68 per cent (144/212) were seropositive for B. besnoiti In addition, 51 per cent (117/228) had characteristic scleral conjunctival cysts and 68 per cent (134/198) had vulval cysts. Postmortem examination of a severely affected animal revealed typical gross and histopathological lesions of B. besnoiti infection. These results confirmed endemic infection with B. besnoiti The identification of this exotic disease highlights the importance of veterinary surveillance at both local and national level, particularly in relation to emerging diseases.
Collections Ireland -> University College Dublin -> PubMed

Full list of authors on original publication

T de Waal, A Johnson, M Sheehan, J P Cassidy, P Kelly, J O'Shaughnessy, C Carty, A Lee, E G Ryan

Experts in our system

Theo de Waal
Total Publications: 41
Alan Johnson
Total Publications: 3
Joseph P. Cassidy
University College Dublin
Total Publications: 55
Peter J Kelly
University College Dublin
Total Publications: 48
James O'Shaughnessy
Total Publications: 9
Catherine I Carty
University College Dublin
Total Publications: 5
Eoin Gerard Ryan
University College Dublin
Total Publications: 8