News | RIVM

Predicting who will experience symptoms after Lyme disease remains challenging

Each year, approximately 27,000 people are diagnosed with Lyme disease. For most, the symptoms disappear after treatment with antibiotics. Unfortunately, 25% of those treated have chronic symptoms, such as fatigue, concentration disorders or pain.

Number of Lyme disease diagnoses remains high

In 2021, the number of Lyme disease diagnoses with a red ring or rash– known as an erythema migrans, or EM – remained as high as in the previous survey in 2017. GPs diagnosed 25,600 patients with a red ring or rash caused by the Lyme bacteria.

New test for Lyme disease is not reliable

To determine whether someone has Lyme disease, doctors in the Netherlands often use antibody tests. For some time now, so-called cellular tests have been available on the market.

Verschillende commerciële laboratoria gebruiken zogeheten cellulaire testen voor Lyme. Helaas zijn niet betrouwbaar.

Ten years of Tick Radar 80,000 tick bite reports; chances of being bitten highest in Drenthe

After recording 80,000 tick bites in 10 years via Tekenradar.nl, we now know that you are most likely to be bitten by a tick in Drenthe. Quickly removing the tick halves the chance of contracting Lyme disease.

Spread of tick-borne encephalitis virus in the Netherlands

Every year about 1.5 million ticks bite someone in the Netherlands, especially between March and October. Most people will not get sick of that.

Graphit rain poses health risk

An assessment of potential health risks shows that graphite rain contains heavy metals and PAHs.

New test has no added value in Lyme disease of the central nervous system

Active Lyme disease of the central nervous system cannot be detected with an ELISpot test.

Lyme disease costs EUR 20 million annually

The societal costs of Lyme disease have been determined for the Netherlands for the first time. The disease appears to cost nearly EUR 20 million each year.

EFSA agrees with RIVM that potential effect of BPA on the immune system requires further attention

RIVM expressed concerns on the effects of bisphenol a (BPA) on the immune system in a report issued in March 2016.

Lab tests alone not conclusive for diagnosis of Lyme disease

Lyme disease can cause a variety of complaints in patients. Laboratory tests for the disease can support medical practitioners in making a diagnosis but are not necessarily conclusive.