Twelve cases of measles have been confirmed in Gothenburg since last month and the virus may have spread to handful of other regions in Sweden. An analyst at Sweden's Public Health Agency urges unprotected people to get vaccinated.
Bernice Aronsson, a paediatrician and an analyst at the Public Health Agency, believes the situation is troubling but that it is unlikely to spiral out of control since Sweden does have a high vaccine uptake.
"We can rely on the so-called herd immunity, so when a person with measles enters the community, there are people who are vaccinated so the disease can't spread more widely," Aronsson explained.
Aronsson also recommends anyone who has not been vaccinated, such as people who may have moved to Sweden from countries where the measles jab is not offered, to seek advice at a healthcare centre.