Fredriksen, B <br/><br/>
Factors affecting the herd level of antibodies against Mycobacterium avium subsp. paratuberculosis--a case-control study.  [electronic resource] 

 -  Acta veterinaria Scandinavica  2003 
 - 283 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0044-605X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Antibodies, Bacterial--isolation & purification<br/>Cattle<br/>Female<br/>Mycobacterium avium subsp. paratuberculosis--immunology<br/>Norway--epidemiology<br/>Paratuberculosis--epidemiology