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Abstract
Extract
Sir, — The Australian possum (Trichosurus vulpecula) is susceptible to Mycobacterium bovis infection (Bolliger and Bolliger, Citation1948) and is thought to be a factor in the persistence of bovine tuberculosis in certain areas of New Zealand (Ekdahl et al., Citation1970). Anaesthetic studies were conducted prior to experimental studies of tuberculosis in captive animals. During these studies we found that several opossums captured on four farms in the Wanganui district had leptospiruria and serum titres to Leptospira hardjo (> 1: 200). A further 20 opossums were obtained from the same source.