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.
Lyme disease cases have quadrupled According to a survey by RIVM , 27,000 people were infected with Lyme disease in 2017. In 2014, the last time RIVM reported on the incidence of tick-borne disease, this number was 25,000.