Borrelia burgdorferi infection in Wisconsin horses and cows.

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=89048796&dopt=Abstract
 
89048796 Ann N Y Acad Sci 1988; 539: 235-43
Borrelia burgdorferi infection in Wisconsin horses and cows.
Burgess EC
(excerpt from abstract:
Of samples cultured 7/156 cow bloods, 2/35 horse bloods, 1/14 cow synovial
fluids, 0/4 synovial fluids, 1/3 cow colostrums, 0/44 cow milk, and 2/10 cow
urine samples were B. burgdorferi culture positive.)

Journal of Spirochetal and Tick-Borne Diseases 1998; 5(4):54-62
Evidence for in utero Transmission of Borrelia burgdorferi from Naturally
Infected Cows
Leibstein MM, Khan MI, Bushmich SL