mycobacterium avium subsp. paratuberculosis in scavenging mammals in wisconsin.the presence of mycobacterium avium subsp. paratuberculosis (map) in non-ruminant wildlife has raised questions regarding the role of these species in johne's disease transmission. in this study we tested 472 tissues from 212 animals of six different species of scavenging mammals. all animals were taken from within a 210-square-mile area in dane and iowa counties of south central wisconsin from september to may in 2003-04 and tested for the presence of map. we detected map-specific dna in 81 of ...200717495318
control of johne's disease in four commercial dairy herds in iowa.a 6-year study was conducted in 4 dairy herds in iowa in which johne's disease was diagnosed previously. fecal specimens were collected at 6-month intervals from animals 2 years of age and over for mycobacteriologic examination. serum samples were obtained at 3-month intervals and tested by enzyme-linked immunosorbent assay (elisa). the antigen used in the elisa was a potassium chloride extract of a field strain of mycobacterium paratuberculosis. the elisa reactions were observed in 87% of the c ...19892488348
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