leptospira interrogans serovar hardjo vaccination against leptospira interrogans serovar balcanica infection

Abstract

Extract

Sir, — Leptospira interrogans serovar balcanica is now recognised as a widespread infection among opossums in New Zealand ⁽²⁾ and the possibility of domestic stock acting as accidental hosts has recently been demonstrated. ⁽³⁾ With the recent development of hardjo vaccines ^{(1) (4)} for controlling infection with this serovar in the maintenance hosts, stock could be left vulnerable to infection with other prevalent serovars such as balcanica.