Doherty, M. L. Bassett, H. F. Grimes, T. D. Markey, B. K. (1996):

Corneal orf in a lamb.

Veterinary Record 138: 6, 139.

Elliott, M. Pinkus, T. (1993):

Homoeopathy, The Shepherd's Guide.

Ainsworths Homoeopathic Pharmacy. London.

Frerichs, G. N. (1980):

Studies on orf virus infections in sheep.

Summary of PhD Thesis, London University, 1980. viii + 153pp.

Greig, A. Linklater, K. A. Clark, W. A. (1984):

Persistent orf in a ram.

Veterinary Record 115: 7, 149.

Gumbrell, R. C. McGregor, D. A. (1997):

Outbreak of severe fatal orf in lambs.

Veterinary Record 141: 6, 150-151.

McKeever, D. (1984):

Persistent orf.

Veterinary Record 115: 13, 334-335.

McKeever, D. J. Reid, H. W. (1986):

Survival of orf virus under British winter conditions.

Veterinary Record 118: 22, 613-614.

McKeever, D. J. Jenkinson, D. M. Hutchinson, G. Reid, H. W. (1988):

Studies of the pathogenesis of orf virus infection in sheep.

Journal of Comparative Pathology 99: 3, 317-328.

Nettleton, P. F. Gilray, J. A. Yirrell, D. L. Scott, G. R. Reid, H. W. (1996a):

Natural transmission of orf virus from clinically normal ewes to orf-naive sheep.

Veterinary Record 139: 15, 364-366.

Nettleton, P. F. Brebner, J. Pow, I. Gilray, J. A. Bell, G. D. Reid, H. W. (1996b):

Tissue culture-propagated orf virus vaccine protects lambs from orf virus challenge.

Veterinary Record 138: 8, 184-186.

Reid, H. W. (1989):

Orf Virus Infection of Sheep.

Animal Diseases Research Association. News Sheet 16.

Reid, H. W. (1991):

Orf. In: Diseases of Sheep.

2^nd edition. Ed.W. B. Martin and I. D. Aitken. pp. 265-269.

Blackwell Scientific Publications, Oxford.

The Henston Large Animal and Equine Veterinary Vade Mecum (1998):

10^th edition. Henston Veterinary Publications.

Veterinary Business Development Ltd. Peterborough, UK.

UKROFS (2000):

UKROFS Standards for Organic Food Production.

UK Register of Organic Food Standards.

Room 320C C/O MAFF, Nobel House, 17 Smith Square, London SW1P 3JR.

Standards

Yirrell, D. Reid, H. W. Norval, M. Howie, S. E. M. (1989):

Immune response of lambs to experimental infection with orf virus.

Veterinary Immunology & Immunopathology 22: 4, 321-332.