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Science commentator Dr Siouxsie Wiles joins Susie to look at a study that identified five viruses that were able to kill bacteria that inflamed the guts of mice - and the hope it may offer those suffering from inflammatory bowel disease.
Even reading a brief story about women and girls engaging in maths was enough to change children's stereotypes about maths being only for boys.
And a US study found people are still testing positive at the end of their 7 days' isolation, which means they're still infectious.
Associate Professor Dr Siouxsie Wiles is the head of Bioluminescent Superbugs Lab at the University of Auckland.
