All residents of the country, Belgian or otherwise, are required by law to be covered by a health insurance policy. It is also in your own best interests. Without insurance coverage, the cost of medical care can quickly spiral out of control. For instance, a single night's stay in the hospital can cost up to €400, not including treatment or medicine. A standard health-insurance policy will reimburse about 75% of the cost of a doctor's visit, medication, and hospitalization.
Scholarship or a grant students
Visiting scholars / fellows
KU Leuven provides an insurance package designed especially for visiting scholars.