Swimming has been banned in the Rhône and Arve rivers after a major sewerage discharge from a treatment plant in Annemasse.
The advice also extends to pets – dogs should not swim in the waters either.
A statement from canton Geneva says bacterial contamination is very high. Measurements were taken at the Etrembières bridge in France.
A similar problem also led to a ban of water activities in July.
The canton says there’s no risk to drinking water.
Health officials say flu season has not peaked
Health officials in Switzerland are warning that the flu season has not yet peaked.
A 'bomb cyclone' is approaching
Switzerland is bracing for severe weather as a powerful storm system approaches northern Europe.
Sales of fire protection equipment soar
The recent tragedy in Crans-Montana is making everyone think of their safety.
Two deaths at Savoie ski resorts
Two fatal incidents have been reported at ski resorts in the French Alps.
Govt should regulate social algorithms
There are calls the government take a tougher approach to social media use by teens.
Motorists stranded in cold weather
The TCS says it has been inundated with call-outs as freezing temperatures grip the country.
