Flu and whooping cough on the rise in Luxembourg

The Health Inspectorate (INSA) revealed that more than 8,200 cases of influenza were recorded in Luxembourg in 2024, an increase of 39% compared to the previous year.

According to the annual report, the Grand Duchy experienced a particularly intense winter season 2024/2025, with the simultaneous circulation of several influenza viruses (A-H1, A-H3, and B) leading to increased pressure on emergency services and primary care. However, the number of severe cases was able to be limited.

Whooping cough, measles, and syphilis

Among the primary epidemiological trends observed in Luxembourg was a re-emergence of whooping cough cases after the virus reappeared in 2023. Last year, over 1,000 cases were confirmed, according to INSA. The illness, which has also risen in other European countries, particularly affects young adolescents in Luxembourg.

In 2024, Luxembourg observed the first detected cases of measles since 2019, requiring "significant contact tracing operations" to limit the spread of the disease. In addition, 25 cases of syphilis were identified among young members of the population in "precarious situations", according to the report. An effective epidemiological investigation and close collaboration with grassroots organisations helped to ensure the majority of patients received the appropriate treatment.

For the first time since 2020, "no significant winter wave" of Covid-19 was observed last year, with just two peaks of low circulation detected in summer and autumn.

The data above is supplied by an innovative surveillance system that requires doctors, dentists, and medical analysis laboratory managers to notify the Health Department of all diagnosed cases of certain illnesses. They are required to report 74 infectious diseases.

Keeping on top of vaccines

The Ministry of Health warns the population that it is important to "ensure that vaccination status is up to date according to the recommendations of the Superior Council of Infectious Diseases", particularly when it comes to limiting the number of cases of whooping cough and measles. In addition, the public are reminded to take preventative measures with regard to sexually transmitted diseases, such as syphilis, by using protection such as condoms and getting tested through early screening to limit the spread and ensure complete recovery.