CHICAGO (WGN) – After multiple cases of rat-borne leptospirosis were reported in Chicago, city officials are sounding the alarm. But how can residents make sure their pets stay safe amid the recent uptick?

On Tuesday, the Chicago Department of Public Health said six cases of leptospirosis have been reported so far this year, higher than the historic median of two per year.

Leptospirosis can affect people, pets and wild animals. The bacteria that cause leptospirosis are spread through the urine of infected animals and can contaminate water and soil, where they can survive for weeks or months.

In four of the six cases identified, symptoms began between July 16 and Aug. 28.

Health officials said those infected in July and August all reported either direct exposure to animal waste, particu

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