@Azuaron @Kalshann and in the first two weeks of sickness no need to present a certificate or other medical statement. In my company the sickness rate is around 3-4% since some years, so this means people are calling sick only when really necessary or work from home if not 100%. So yeah, it seems to work, even better than in other European countries where the certificate is compulsory after the first day and people are forced home by their GP for several days..