Respiratory tract infections: Weekly review: 9 - 15 January 2023

The weekly retrospective gives you a broader overview of respiratory viruses in general: including COVID-19 and influenza.


During the week of 9 to 15 January 2023, the number of people testing positive for COVID-19 decreased to 660 cases, compared to 990 cases the previous week (decrease of 34%).

Among all those who tested positive, 45.8% were re-infected, compared to 43.1% the previous week.

4 further deaths in connection with COVID-19 are to be deplored. ​

The average age of the deceased is 82 years.

In the hospitals, there were 21 new admissions of confirmed COVID-19 patients in normal care, compared to 23 the previous week. In intensive care, the number of occupied beds is 2. The average age of hospitalised patients is 76 years.

Vaccinations: update on the situation

For the week of 9 to 15 January 2023, a total of 704 doses were administered. 9 people received a 1st dose, 16 a 2nd dose, 67 people received one complementary dose to a full vaccination, 570 received a second complementary dose to a full vaccination and 42 received a third complementary dose to a full vaccination and 0 a fourth complementary dose to a full vaccination, raising the total number of vaccines administered as of 16 January 2023 to 1,292,911.

474,937 people have a complete vaccination pattern, which corresponds to a vaccination rate of 79% of the eligible population (i.e. the 5+ population).

Vaccination pop-up in Esch-Belval

In order to facilitate the possibility of getting vaccinated, a vaccination pop-up is open on Fridays until 17 February 2023 from 10 am to 4 pm in Esch-Belval in the Belval Plaza shopping centre on the 1st floor.

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 variant dominates, representing 69.4% in week 1 in 2023 (75.1% in week 52 in 2022). The XBB variant represents 8.8% in week 1 in 2023 (4.7% in week 52 in 2022).

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 24 January 2023 and will contain data for weeks 2 and 3.

All CORONASTEP reports are available on the LIST website:




For the week of 9 to 15 January 2023, the number of influenza cases reported by laboratories decreased to 192 cases from 507 cases in the previous week, a decrease of 62% compared to the previous week. The downward trend of the last 2 weeks is confirmed.

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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