Epizootic Vesicular Stomatitis in Colorado, 1982: Epidemiologic Studies along the Northern Colorado front Range

P. A. WebbDivision of Vector-Borne Viral Diseases, Center for Infectious Diseases, Centers for Disease Control, Public Health Service, U.S. Department of Health and Human Services, P.O. Box 2087, Fort Collins, Colorado 80522-2087

Search for other papers by P. A. Webb in
Current site
Google Scholar
PubMed
Close
,
T. P. MonathDivision of Vector-Borne Viral Diseases, Center for Infectious Diseases, Centers for Disease Control, Public Health Service, U.S. Department of Health and Human Services, P.O. Box 2087, Fort Collins, Colorado 80522-2087

Search for other papers by T. P. Monath in
Current site
Google Scholar
PubMed
Close
,
J. S. ReifDepartment of Microbiology and Environmental Health, Colorado State University, Fort Collins, Colorado 80523

Search for other papers by J. S. Reif in
Current site
Google Scholar
PubMed
Close
,
G. C. SmithDivision of Vector-Borne Viral Diseases, Center for Infectious Diseases, Centers for Disease Control, Public Health Service, U.S. Department of Health and Human Services, P.O. Box 2087, Fort Collins, Colorado 80522-2087

Search for other papers by G. C. Smith in
Current site
Google Scholar
PubMed
Close
,
G. E. KempDivision of Vector-Borne Viral Diseases, Center for Infectious Diseases, Centers for Disease Control, Public Health Service, U.S. Department of Health and Human Services, P.O. Box 2087, Fort Collins, Colorado 80522-2087

Search for other papers by G. E. Kemp in
Current site
Google Scholar
PubMed
Close
,
J. S. LazuickDivision of Vector-Borne Viral Diseases, Center for Infectious Diseases, Centers for Disease Control, Public Health Service, U.S. Department of Health and Human Services, P.O. Box 2087, Fort Collins, Colorado 80522-2087

Search for other papers by J. S. Lazuick in
Current site
Google Scholar
PubMed
Close
, and
T. E. WaltonArthropod-Borne Animal Diseases Research Laboratory, Agriculture Research Service, U.S. Department of Agriculture, P.O. Box 3965, University Station, Laramie, Wyoming 82071

Search for other papers by T. E. Walton in
Current site
Google Scholar
PubMed
Close
Restricted access

Epidemiologic evaluations were made of farm personnel on vesicular stomatitis-affected premises along the front range of the Rocky Mountains in Colorado during the 1982 epizootic. A similar antibody prevalence was noted to that of veterinarians and research and regulatory personnel who were involved with the same epizootic. Risk of infection resulted from intimate physical contact with infected horses or cows. Incidence and infection rates in horses were 45%; rates in cows were much lower, only 5%. Some epidemiologic clues were gained by a detailed study of an equine ranch. The pasture was incriminated as the area of highest risk, where 100% infection rates were noted. Horses in open pens and barns were at lower risk. Severe clinical disease in horses resulted in higher neutralizing antibody titers than inapparent or mild infection. Maternal antibody was detected in foals up to 4 months of age, and the level of antibody in the foal was a reflection of the dam's antibody level.

Save