Zika

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The World Health Organisation no longer sees Zika as a health emergency. But what does this downgrade mean for mothers and babies, asks Catherine Bateman Steel.

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With the Rio Games underway, UNSW experts are available for comment on issues from doping in sport and the threat from Zika, to the economics of the Olympics spectacle.

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During a disease outbreak, lots of people can become infected in a short time and develop immunity, making it hard for the pathogen to spread, write Nicholas Geard, Cameron Simmons, James McCaw, James Wood and Jodie McVernon.