Zika threat is 'low' at Rio 2016 Olympics, says WHO chief

The risk of the Zika virus affecting fans and competitors at the Rio Olympics 2016 is "low and manageable", according to the World Health Organisation (WHO).

Despite worries over the Zika virus, nearly half-a-million people are expected to visit Brazil for the Games, the majority of whom are travelling from the United States. 

With just under a third of the tickets available for events still unsold, many physicians, competitors and potential visitors have expressed fears the Olympics could serve as a catalyst to spread the virus across the globe.

Brazil was the hardest-hit country but WHO leader Margaret Chan, who will travel to the Games herself, assured fans the risks they face are minimal if the correct measures are taken.

"We feel that the risk of Zika infection is low for an individual, and it is manageable," said Chan. 

As long as individuals take appropriate personal protective measures, including the use of a mosquito repellent, and including wearing clothing that prevents mosquito bites," she said.

The WHO has been researching the threat of the disease, taking into account action taken by Brazil to combat the spread of infection.There is currently no vaccine or treatment for the virus, which is primarily spread through the bite of an infected mosquito.