A commercial vaccine has been found to provide protection against leptospirosis.

Leptospirosis can be transmitted among livestock and wild animals or humans, spread through contact with food, water or soil contaminated with urine from infected animals, according to a report.

Researchers at the Agricultural Research Service National Animal Disease Center in Ames, Iowa, tested a version of this vaccine and discovered that it induced some protection against infection with Leptospira borgpetersenii serovar Hardjo, the main cause of bovine leptospirosis.

NADC's Infectious Bacterial Diseases Research Unit examined the vaccine's potency in reducing the shedding of bacteria, potentially affecting the spreading of leptospirosis in herds.

They found the vaccine appeared to be effective at both three-month and one-year periods after vaccination, and while not providing complete protection from shedding at one year after vaccination, it improved immunologic responses and protection against shedding of leptospirosis.