Eighteen cases of measles. Breakout caused by virus brought from abroad, says health minister

"Measles breakout, caused by a virus brought from abroad, shows that vaccination is working, otherwise there would be more cases. There's no epidemic, situation is good, the Minister of Health Łukasz Szumowski said on Monday. During the weekend there were reports of 14 cases of measles in Masovian Voivodeship. According to data from Monday, the number increased up to 18 cases.