RIVM and Wageningen University researchers expect the tick bite season to reach its peak in the next few weeks. The peak will coincide with the start of the summer holidays.

Ticks are active again, as shown by the increase in tick bite reports on Tekenradar.nl. Quick action is important: the faster you remove a tick after it bites you, the lower your risk of contracting Lyme disease.

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.

Throughout 2022, the Netherlands faced a persistent avian flu outbreak, affecting 76 poultry farms. The virus also infected numerous wild birds and various wild mammals. These findings are presented in the Zoonoses Report, an annual publication issued jointly by RIVM and the Netherlands Food and Consumer Product Safety Authority (NVWA).

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.

In 2022, the reported number of tick bites in the Netherlands fell by a third compared to previous years. In order to find a satisfactory explanation for such differences, researchers at WUR and RIVM have initiated a large-scale study via Tekenradar.nl. This will give them more insights into the 1.5 million tick bites in the Netherlands every year.

More than 18 thousand people in the Netherlands have received one or more mpox vaccinations. The vaccination campaign was launched late last July, shortly after the outbreak began, and ended last month.

The outbreak of the H5N1 variant of avian flu was the most remarkable outbreak in 2021. In October of that year, the Netherlands experienced the start of the biggest outbreak of avian flu since 2003.

10,440 monkeypox vaccinations have already been administered in the Netherlands in the last few weeks. That represents about one-third of the target group currently eligible to get the vaccine against monkeypox.