Leptospirosis

Leptospirosis

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Leptospirosis is a disease of worldwide significance that infects both animals and humans. The scientific name of the infecting organism is Leptospira interrogans sensu lato. Within this species there are many different strains (serovars). Of these different strains there are eight that are of importance for dogs and cats. These different strains produce different levels and types of disease depending on the animals they infect. While cats can be infected, they rarely show signs of disease. The disease is much more of a problem in dogs, people, and livestock. There are vaccines available, but usually only for one or two of the more common strains. Unfortunately, vaccination against one strain does not protect against the other strains. The current canine vaccines protect against the serovars canicola and icterohaemorrhagiae. These two serovars have been decreasing in total number of infections, but unfortunately, other serovars that infect dogs such as grippotyphosa, pomona, and bratislava have increased.