Two players had tested positive on Tuesday. Meares added that the cases were confined to the water polo team.
Australia Olympic team aware of alleged rape of Australian woman in Paris
Australian water polo player has been isolated
Here are some highlights -- in pictures -- from Day 2 of the events at Gold Coast...
The turn of the Olympic cycle has ushered in a new generation of riders plotting to overthrow track queen Anna Meares, but the seasoned Australian is confident of being in top gear to defend her sprint title at the Rio de Janeiro Games.
The 21-year-old had to chase down James Guy and Jack McLoughlin to win the title, pulling ahead in the final 100 metres to edge out compatriot McLoughlin and the Englishman to touch in three minutes, 43.76.
World champion Matthew Glaetzer, favourite to win the men's sprint gold at the Commonwealth Games, crashed out of the preliminary rounds on Saturday after an 'embarrassing' tactical blunder against Malaysian rank outsider Muhammad Sahrom.
From Australian captain Michael Clarke to other big names, tributes flew in for former Australian cricket captain and commentator Richie Benaud, who died of skin cancer late on Thursday aged 84. Here are some reactions...
Check out the gold medal winners on Day 7 of the 2016 Olympic Games in Rio de Janeiro, on Friday:
Drysdale wins close single sculls gold Also, check out late gold medal winners from Day 7...