For local information, the Switzerland Federal Office of Public Health (FOPH) has set up a multilingual hotline for questions about Covid-19. The number, which operates 24 hours a day, is +41 58 463 00 00. In addition, a hotline has been made available by the Geneva cantonal authorities (0 800 909 400), operating every day from 10 am to 10 pm.
As far as the French authorities are concerned, the number to call for information is 0 800 130 000. In case of fever, cough and respiratory issues you can call the emergency number 15.