Four members of the Australian women’s water polo team have been quarantined in Rio after falling ill just days out from the opening ceremony.
The four Aussie Stingers athletes suffering from gastro were separated from their teammates when they landed in Rio on Monday.
They will be kept away from the rest of the team for at least 48 hours while they recover.
The team’s first match is on Tuesday against Russia.
They are strong medal contenders after having won bronze medals in Beijing in 2008 and London in 2012, as well as gold in Sydney in 2000.
According to the US Centres for Disease Control and Prevention, half of all travelers visiting a developing country for a two-week stay will experience gastro to some degree.
The stomach illness is the least of the health concerns for athletes visiting Rio though. Many, including world number one golfer Jason Day, have pulled out of the game with concerns of contracting zika virus, an outbreak which is currently ongoing in Brazil.
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