I've worked in the US and France so can speak about both. In France I can self-certify that I am sick and quarantine myself at home. I can call a doctor to make

I've worked in the US and France so can speak about both. In France I can self-certify that I am sick and quarantine myself at home. I can call a doctor to make a homecall and the pharmacy will deliver my meds on request. In the US I've had colleagues that were told to go home. Even with overwhelming evidence that they should not be at work they came anyway. Unfortunately, some could not afford to be sick. Rather than take the personal financial hit they caused the entire operation to slow/stop as other workers called in sick. Unfortunately social etiquette in the US means to show you are productive even with sickness. "See how productive I am, I've got the flu and I'm still doing this presentation!"