A dozen Australian swimmers have been sickened . The Sydney Morning Herald reports that the water in Olympic Park is contaminated with a toxic cocktail of chemicals including cyanide. Pool water has tested clean , a games official said on condition of anonymity . Dengue is the most common virus transmitted by mosquitoes in the world . Organizers are exploring what else could have sickened the athletes .
A dozen Australian swimmers have been sickened . The Sydney Morning Herald reports that the water in Olympic Park is contaminated with a toxic cocktail of chemicals including cyanide. Pool water has tested clean , a games official said on condition of anonymity . Organizers are exploring what else could have sickened the athletes .