Porto Santo currently has the equivalent of 277 infected per 100 thousand inhabitants, according to the calculation rules.
A further 12 cases of covid-19 were detected in Porto Santo.
The Health Delegate is concerned with the return to the island of 800 people who came to spend Christmas and New Year in Madeira.
There are 12 more cases to add to the 6 already detected in Porto Santo.
The Golden Island has 18 active cases of covid-19.
The health delegate says that for now the situation affects three families.