Respiratory tract infections: Weekly review: 19 - 25 December 2022

Starting today, the weekly review will give you a broader overview of respiratory viruses in general: including COVID-19 and influenza.


During the week of 19 to 25 December, the number of people testing positive for COVID-19 increased to 1.656 cases, compared to 1.464 cases the previous week.

In addition, 1.073 people were re-infected, representing 39,3% of all those who tested positive, compared to 1.110 (43,1%) the previous week.

8 new deaths in connection with COVID-19 are to be deplored. ​

The average age of the deceased is 83 years.

In the hospitals, there were 38 new admissions of confirmed COVID-19 patients in normal care, compared to 39 the previous week. In intensive care, the number of occupied beds is 2. The average age of hospitalised patients is 67 years.

Vaccinations: update on the situation

For the week of 19 to 25 December 2022, a total of 778 doses were administered: 14 people received a 1st dose, 12 a 2nd dose, 70 people received one complementary dose to a full vaccination, 647 received a second complementary dose to a full vaccination and 35 received a third complementary dose to a full vaccination and 0 a fourth complementary dose to a full vaccination, the total number of vaccines administered as of 26 December to 1.292.710.

474.898 people have a complete vaccination pattern, which corresponds to a vaccination rate of 79% of the eligible population (i.e. the 5+ population).

The list of all vaccination possibilities can be consulted on the following website:

The evolution of the variants

Variant sequencing data are published in the REVILUX report on the website of the National Health Laboratory (Laboratoire national de Santé, LNS)

Currently the Omicron BQ.1 variants dominate, representing 58.8% in week 49.

Wastewater monitoring in Luxembourg as part of SARS-CoV-2

The CORONASTEP report is published every 15 days.

The next report is planned for Tuesday 3 January 2023 and will contain data for weeks 51 and 52.

All CORONASTEP reports are available on the LIST website: ​


For the week of 19 to 25 December, the number of influenza cases reported by laboratories increased to 2,551 cases from 1,383 cases in the previous week, an increase of 84% compared to the previous week. The number of influenza cases is currently exceeding the peak of this year's spring flu wave. 

The microbiology department of the LNS, in collaboration with the Health Directorate and a network of sentinel general practitioners and paediatricians throughout the country, carries out annual influenza sentinel surveillance:

Data on the influenza sentinel are published in the REVILUX report on the National Health Laboratory website LNS

Press release by the Ministry of Health, the Laboratoire national de santé (LNS) and the Luxembourg Institute of Science and Technology (LIST)

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