Monitoring of Redlines for Covid-19 - Update no 35 -26th November 2021

On  26th November 2021 the Directorate-General for Health (DGS) and the National Institute of Health Doutor Ricardo Jorge (INSA) release report No.35 on monitoring the red lines for COVID-19. The report includes the various indicators described in the Red Lines document, namely the 14-day incidence and the transmissibility index (Rt), national and by health region. From this report, the following points are highlighted:

  • The cumulative number of new SARS-CoV-2 / COVID-19 infections per 100 000 inhabitants over the last 14 days was 298, reflecting a national increasing trend.
  • For the age group of 65 years old and older, the cumulative number of new SARS-CoV-2 infections per 100 000 inhabitants over the last 14 days was 211, reflecting an increasing trend.
  • The effective reproduction number (R(t)) was at or above 1 at national level (1.19) and in all the regions, suggesting an increasing incidence trend. If the observed incidence growth rate is maintained at national level, the threshold of 480 cases per 100.000 habitants in 14 days could be reached in less than 15 days.
  • The number of COVID-19 cases admitted to Intensive Care Units (ICU) in mainland Portugal showed an increasing trend, corresponding to 40% (28% in the previous week) of the defined critical value of 255 occupied beds.
  • The proportion of positive tests for SARS-CoV-2 was 4.7% (4.3% in the previous week) which is above the defined threshold of 4.0%.
  • There was an increase in the number of tests performed to detect SARS-CoV-2 in the last seven days.
  • The proportion of confirmed cases with delayed notification was 2.6% (2.8% last week), remaining below its critical value of 10%.
  • In the last seven days, 88% of confirmed SARS-CoV-2 / COVID-19 cases were isolated in less than 24 hours after notification, and 81% of all cases had their contacts traced and quarantined, whenever necessary, within the same period.
  • The Delta variant (B.1.617.2), originally associated with India, is the dominant variant in all regions, representing 100% of cases evaluated so far in week 45/2021 (8-14 November) in Portugal. No far, no cases of the new lineage Omicron B.1.1.529 were detected in Portugal.
  • The COVID-19 specific mortality (15.5 deaths per 1 000 000 inhabitants over the last 14 days) presents an increasing trend. The level of the mortality rate indicates a moderate impact of the pandemic on the mortality.
  • The analysis of the different indicators reveals an epidemic of SARS-CoV-2 activity of high intensity, with an increasing trend at the national level. Pressure on health services and the impact on mortality are still moderate. The emergence of a new virus lineage B.1.1.529, with an increased number of relevant mutations and an apparent dissemination in in South Africa during the last weeks, supports the need to strengthen the epidemiological, virological and border control surveillance in Portugal, until more information is known.


Full Report in Portuguese here

Defines the indicators related to risk assessment and monitoring of the COVID-19 pandemic, according to which the measures provided for in articles 35 and 36 of the Resolution of the Council of Ministers no. 101-A/2021 may be applicable, of July 30th

Download in informal English here

Strategy of lifting containment measures in the context of controlling Covid-19 – Council of Ministers Resolution 70-B/2021 dated 4th June 2021  Download in informal English here