In June 2025, the mental well-being of young people declined compared to three months earlier. Fewer young people felt happy most of the time, while more of them experienced loneliness, stress and suicidal thoughts. In addition, more young people contacted the GP because of suicide-related thoughts and attempts. On the other hand, confidence in the future stabilised, and fewer young people reported having physical symptoms. These findings are from the sixteenth quarterly survey. The results of this study are part of Health Research for COVID-19.

Vaccination against types A, C , W and Y have been included in the National Immunisation Programme. As of 1 May 2018, toddlers receive a vaccination that protects against meningococcal disease. 14-year-old adolescents also receive an invitation for a vaccination.

Expressing disease burden in a single measure allows for the comparison of health loss from different diseases. Such a comparison is important for prioritizing policies and resources to combat (infectious) diseases. A commonly used measure for disease burden is the disability-adjusted life year (DALY). Disease burden in DALYs represents a sum of lost healthy life years due to illness and disability (years lived with disability: YLD) and due to premature death (years of life lost: YLL). Detailed descriptions of the methods used can be found in a previous edition of the State of Infectious Diseases(PDF). This webpage presents estimates of DALYs for COVID-19 and influenza. The disease burden of the long-term effects after a SARS-CoV-2 infection, or the 'post-COVID syndrome,' is not included, regardless of whether the person had a mild COVID-19 infection or was hospitalized. A more comprehensive description of these two infectious diseases, and 35 other infectious diseases in the Netherlands, is published in the State of Infectious Diseases 2023(PDF) (in Dutch). 

Each week, around eighteen laboratories report the number of detections (positive test results) of various respiratory pathogens to the RIVM. In addition, there are seven laboratories that only report the number of SARS-CoV-2 detections. All these laboratories together report to the national virological laboratory surveillance of the Dutch Working Group for Clinical Virology (NWKV) of the Dutch Society for Medical Microbiology (NVMM). More background information about the virological laboratory surveillance can be found in the document ‘Background and methods on respiratory surveillance 2024/2025’.Because respiratory infections mainly occur in winter, the data are presented for a respiratory season or a respiratory year. A respiratory year runs from week 40 of one year through week 39 of the following year. A respiratory season runs from week 40 of one year through week 20 of the following year. On this page, the data for the 2024/2025 respiratory year is limited to the respiratory season. For an overview of the dynamics of the various pathogens, see the figures below. The figures for SARS-CoV-2, Influenza virus, and RSV are shown in the specific chapters about these viruses.

Because most respiratory infections occur mainly in the winter, the data are presented for a respiratory season or a respiratory year. A respiratory year runs from week 40 of one year through week 39 of the following year. A respiratory season runs from week 40 of one year through week 20 of the following year. On this page, the data for 2024/2025 are limited to the respiratory season. More background information about the different surveillance sources can be found in the document ‘Background and methods of the respiratory surveillance 2024/2025’.