According to the daily epidemiological bulletin, since the beginning of the pandemic Portugal has registered 1,846 deaths and 60,895 cases of infection.
The three deaths were registered in the region of Lisbon and Vale do Tejo (1) and in the Northern region (2).
34,466 contacts remain under surveillance, 130 more than on Monday.
In the Lisbon and Tagus Valley region 225 new cases have been reported, accounting for 31,273 and 687 deaths since the beginning of the pandemic.
The northern region now has a further 119 cases, with a total of 22,049 and 851 deaths.
In the Centre region there have been a further 17 cases, with a total of 5,004 infections and 254 deaths since the beginning of the pandemic.
In the Alentejo a further 11 cases of Covid-19 have been registered, totalling 998 cases and 22 deaths.
The Algarve region has today reported three more cases of Covid-19 infection, now totalling 1,171 cases and 17 deaths since the beginning of the pandemic.
The autonomous region of the Azores has reported three new cases, totalling 227 infections since the beginning of the pandemic and 15 deaths.
Madeira today registers one new case, accounting for 173 Covid-19 infections, with no deaths since the beginning of the pandemic.
The DGS also reports that in the last 24 hours 130 patients have recovered, totalling 43,146 recovered people since the beginning of the pandemic in Portugal.
The number of inpatients rose to 394 (13 more) and the number of patients in intensive care units rose to 50 (one more).
Confirmed cases are spread over all age groups, with the highest number of infections recorded between 20 and 59 years of age.
In total, the new coronavirus affected at least 27,437 men and 33,458 women in Portugal, according to the reported cases.
Of the total number of deaths, 927 were men and 919 women.
The highest number of deaths continues to be concentrated in people over 80 years of age.
The Covid-19 pandemic has already claimed at least 889,498 lives and infected more than 27.1 million people in 196 countries and territories, according to a report by the French agency AFP.
The disease is transmitted by a new coronavirus detected at the end of December in Wuhan, a city in central China.
After Europe succeeded China as the centre of the pandemic in February, the American continent now has the most confirmed cases and the most deaths.