Nikhil Prasad Fact checked by:Thailand Medical News Team Oct 25, 2026 1 hour, 22 minutes ago
The Netherlands is seeing an increase in laboratory detections of SARS-CoV-2 during week 42 of 2026 even while overall circulation stays low and wastewater signals seem stable. According to the RIVM weekly update of 21 October 2026, the virus was identified slightly more often in diagnostic laboratory reports compared with the preceding period, yet absolute numbers remain limited.
COVID-19 is rising once again in the Netherlands as the cold season approaches
Wastewater surveillance, which had shown increases in earlier weeks, seems stable. In the general population tracked through Infectieradar, self-reported positive tests continue to fluctuate without a sustained surge.
Laboratory and Sentinel Surveillance Details
Virological laboratory data from the Dutch Working Group for Clinical Virology indicate the modest rise in detections while confirming that activity stays well below historical peaks. Nivel primary-care sentinel sampling for week 42 (12th–18th October) tested 24 specimens from patients with acute respiratory infections and found SARS-CoV-2 in one sample, equating to roughly 4 percent positivity. Rhinovirus dominated the same panel. Acute respiratory infection consultations at general practices remained modest and comparable to week 41.
European respiratory-virus surveillance for week 41 showed EU/EEA primary-care SARS-CoV-2 positivity at 16 percent overall, with the Netherlands contributing to the low end of the spectrum.
Variant Picture and Hospital Context
Pathogen surveillance shows XFG and BA.3.2 as the most frequently detected lineages in recent Dutch samples. XFG had been dominant through much of 2025, while BA.3.2 and its subvariants gained ground from late 2025 onward. Neither lineage has been linked to increased clinical severity relative to earlier Omicron descendants. Intensive-care occupancy for respiratory infections remains low, with only a slight upward drift noted in broader severe acute respiratory infection monitoring. Hospital pressure attributable specifically to COVID-19 stays minimal.
Surveillance Context and Forward Outlook
RIVM emphasizes that SARS-CoV-2 has entered an endemic phase in the Netherlands and that current case volumes are low to support weekly variant updates; these are now issued every four weeks unless activity rises.
Because routine diagnostic testing has declined sharply, wastewater, sentinel swabs, and laboratory reporting provide the main windows into community transmission. Continued monitoring through the autumn will determine whether the recent laboratory uptick represents early seasonal acceleration or remains within baseline fluctuation.
Vulnerable populations are advised to maintain precautionary measures and seek assessment for prolonged respiratory symptoms. This
Thailand Medical News report is based exclusively on RIVM, Nivel, and ECDC releases covering weeks 41 and 42 of 2026.
The rise in laboratory detections of SARS-CoV-2 in the Netherlands during mid-October 2026 occurs against a backdrop of stabilized wastewater activity and minimal clinical impact. While absolute numbers s
tay small, the combination of circulating XFG and BA.3.2 lineages and the approach of colder weather supports continued integrated surveillance and targeted protection of older and medically vulnerable adults.
Official Sources
https://www.rivm.nl/en/coronavirus-covid-19/current/weekly-update
https://www.rivm.nl/corona/actueel/weekcijfers
https://www.rivm.nl/corona/actueel/virusvarianten
https://www.nivel.nl/nl/zorg-en-ziekte-in-cijfers/actuele-cijfers-ziekten-per-week
https://www.ecdc.europa.eu/en/publications-data/weekly-respiratory-virus-update-week-41-october-2026
https://erviss.org/
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https://www.thailandmedical.news/articles/coronavirus
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