People travelling to the Rio Olympics are being advised by the World Health Organization (WHO) to make sure their routine vaccinations are up to date.

WHO reports that Brazil has made strides in tackling diseases such as measles, but the influx of thousands of international athletes and sports fans could potentially put gains at risk.

Dianne Penn spoke to Nyka Alexander, a WHO spokesperson who has been deployed to the country for the Games which start on Friday.

She says although the South American giant has been battling the Zika virus, spread by infected mosquitoes, travellers should educate themselves about more mundane concerns such as preventing dehydration and staying safe in the sun.

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