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New Zealand study shows mice silently spread leptospirosis

House mice are a critical yet underestimated source of the bacterial disease leptospirosis in New Zealand, which means anyone in contact with mice could be at risk of infection, not just farmers, according to a study released on Tuesday.

Leptospirosis is a disease caused by bacteria that affects people and animals. It is spread in the urine of infected animals.

The study, jointly conducted by New Zealand researchers from Massey University, ecologists from the University of Auckland, and Brazilian wildlife veterinarians, found that two-thirds of reported leptospirosis cases result in hospitalization, with half experiencing long-lasting symptoms.

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