The epidemiological bulletin of the DGS released today also reveals that 420 people are hospitalised, five more compared to Sunday, of which 79 are in intensive care, less four.
The death of a person over 80 years old occurred in the North region.
Since the beginning of the pandemic, in March 2020, 17,955 people have died in Portugal and 1,067,175 cases of infection have been registered.
In the balance since the beginning of the pandemic, the greatest number of deaths continues to be concentrated among the elderly over 80 years (11,711), followed by the age group between 70 and 79 years old (3,846).
Of the total number of fatalities registered, to date, 9,414 in Portugal were men and 8,541 women.
Data released by the DGS also show that 250 fewer cases are active, for a total of 31,285, and that 479 people were reported as having recovered from the disease in the last 24 hours, increasing the national total to 1,017,935 recovered.
In the last 24 hours, the number of contacts under surveillance by the health authorities dropped (less 452), standing at 27,845.
The new coronavirus has already infected in Portugal at least 492,982 men and 573,459 women, according to data from the DGS.
Among the new infections, people between 40 and 49 stand out with more than 37 new infections, followed by the group between 20 and 29 years old (over 35).
In people over 80 years old there were 16 new cases, in the age group between 70 and 79 there were 19 more infections and between 60 and 69 more 28.
In the region of Lisbon and Vale do Tejo, 78 new infections were reported, with 412,78 cases and 7,670 dead so far in this geographic area.
The Northern region observed 54 new SARS-CoV-2 infections, totalling 409,625 cases of infection and 5,550 deaths since the onset of the pandemic crisis.
In the Centre region there were 17 more cases, totalling 142,543 infections and 3,141 deaths.
In the Alentejo, 38 new cases of infection were reported, totalling 38,725 infections and 1,022 deaths since the beginning of the pandemic.
In the Algarve region, today's bulletin from the DGS reports that 35 new cases were registered, accumulating 42,480 infections by SARS-CoV-2 and 458 deaths.
The Autonomous Region of Madeira recorded three new cases, totalling 12,208 infections and 72 deaths due to the covid-19 disease since March 2020.
In the last 24 hours, and according to DGS, the Azores presented five new cases, which raises to 8,806 infections since the beginning of the pandemic. The number of deaths remains at 42.
The regional authorities of the Azores and Madeira publish their data daily, which may not coincide with the information published in the DGS bulletin.
The incidence rate of infections with SARS-CoV-2 in the last 14 days has dropped again both on the mainland and nationally, with Portugal in the green zone of the risk matrix.
Nationally, the incidence rate dropped from 127.3 cases to 111.6 per 100,000 inhabitants, according to the joint epidemiological bulletin of the Directorate-General for Health and the National Institute of Health Doctor Ricardo Jorge released today.
In mainland Portugal, this indicator dropped from 129.7 to 113.5 cases of infection.
The Rt - which estimates the number of secondary cases of infection resulting from each person carrying the virus - has registered an increase since Friday, from 0.83 to 0.85 nationally and from 0.82 to 0.84 in Continental Portugal.