Due to the high Covid numbers, the Health System is incapable of tracking and tracing the cases. The Government decided to move some of the burden of this work to an app (in Portuguese) online: https://s-alerta.pt/CIDADAO/index.cfm
Once a person has tested positive, this app can be used to denounce other persons who might be positive. The site can give out a document for the employer to justify the absence at work. It can then also be accessed to obtain a document that the person is declared healthy after isolation.
Trying to stem the wave…
info at madeira-weekly.com