Health authorities continue to search for the source of a poisoning incident that led to five people being hospitalised in Brisbane’s south in the past week after ingesting rat bait.

Queensland Health issued an alert to staff on Saturday warning them to be on the lookout for symptoms related to the consumption of brodifacoum – a widely used rat poison.

Experts warn of “excessive bleeding” for victims of rat poison. Credit: Adobe Stock

It came after five patients, including a child, presented to the Queensland Children’s Hospital, Logan Hospital and Princess Alexandra.

Symptoms of rat poisoning could take “many days” to be noticed, said Professor Paul Griffin, the director of infectious diseases at Mater Health, and he warned people not to be complacent.

“There’s a strong suggestio

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