Weekly update on the coronavirus SARS-CoV-2: 16 April 2025
Minimal coronavirus SARS-CoV-2 in the Netherlands
In week 15 (7 - 13 April 2025), the national average viral load detected in wastewater surveillance decreased slightly (-10%) compared to the week before that. Levels of virus particles in wastewater have been low since week 50 2024.
The percentage of Infection Radar survey participants who tested positive for COVID-19 increased last week, and is still at a low level. SARS-CoV-2 was not detected in any of the 14 samples taken last week from some of the patients who saw their GP for respiratory symptoms. The number of positive SARS-CoV-2 tests reported by Dutch laboratories in the weekly virological status reports for the Netherlands also remained low.
Besides SARS-CoV-2, other viruses can also cause respiratory infections. See the latest situation update on respiratory viruses in the Netherlands (in Dutch). The latest situation update on SARS-CoV-2 variants is available here.
Long-term symptoms
How long it takes for someone to recover from COVID-19 can differ from one person to another. Some people have long-term symptoms that persist after a SARS-CoV-2 infection. This is called post-COVID or Long COVID. Since 28 June 2024, a new research portal has been launched for people with post-COVID.
*The daily number of unique survey participants reporting a positive COVID-19 test, summed up for the entire calendar week (Monday through Sunday). The positive test result could come from a self-test, PCR test or rapid antigen test. The percentage of participants who get a COVID-19 test when they have symptoms may fluctuate over time. These results are not from the nose and throat swabs sent in through the self-test study that started in September 2022.
Data of 2019/2020 season is available from week 14 of 2020. Week 53 of 2020 is not included in this figure.
Based on data available at RIVM on Wednesdays, as published in the open data and presented on the Coronavirus Dashboard. See the webpage about Sewage water surveillance for the most recent data. See the explanation of the data presented for more details about how these figures are calculated.
The daily number of unique survey participants reporting a positive COVID-19 test, summed up for the entire calendar week (Monday through Sunday). The positive test result could come from a self-test, PCR test or rapid antigen test. These results are not from the nose and throat swabs sent in through the self-test study that started in September 2022. Source: Infectieradar RIVM.
Posting schedule for COVID-19 updates
| Updates | When |
|---|---|
| Weekly update on the coronavirus SARS-CoV-2 | Weekly on Wednesday afternoon |
| Even weeks on Wednesday afternoon | |
| Figures on vaccine effectiveness in preventing hospital admissions | The date of the next update has not yet been determined |
| Mortality figures | Weekly on Wednesday afternoon |
| Figures on pathogen surveillance of virus variants | Even weeks on Wednesday afternoon |
| Figures on coronavirus monitoring in wastewater research | Weekly on Wednesday afternoon |
| RIVM provides access to the underlying data sets for various topics related to COVID-19. This includes data on reported cases of COVID-19, pathogen surveillance results, and sewage surveillance results. The data is publicly available to download. | |