Tick found in Drenthe is a Hyalomma tick RIVM has investigated the so-called giant tick that was found in Odoorn in the province of Drenthe on 13 July. It is a Hyalomma marginatum female.
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.