First West Nile virus patient in the Netherlands A male patient has been diagnosed with the West Nile virus last week. The man has not been abroad recently. He may have contracted the virus in the region of Utrecht due to a mosquito bite.
Meningococcal disease serious, but still rare Meningococcal disease is a disease caused by a bacterium, the meningococcus. There are several types of this bacterium. In most cases, it does not make you ill.