It could be Brucellosis The primary disease signs associated with canine brucellosis are referable to the genital tract. One of the main symptoms is: Abortion (occurring late, usually at 6 to 8 weeks of gestation), or the birth of dead pups at term or near term, or birth of weak ("fading") pups that die shortly after birth. Uncommonly, pups may survive to carry the illness into later life. [url=http://molosserdogs.com/modules.php?name=Encyclopedia&op=content&tid=387]Read more...[/url]