The five victims in Katrineholm are believed to be a cluster of a small outbreak that was discovered in April this year. A few people in several counties have fallen ill and what the five victims in Katrineholm have in common is that they have used drugs.

"Classic infection tracking"

People with drug abuse are judged to be more difficult to get in touch with from an infection tracing point of view than others and the infection control doctor Signar Mäkitalo is keen to try to curb the infection.

- I extremely do not want it to come into, for example, a preschool or that someone who cooks for many people is infected. Then the virus can spread.

- Now we are engaged in classic infection tracking, says Signar Mäkitalo.

He has urged health centers to be generous with vaccines to those who may have been in contact with someone who has been infected.

Mäkitalo: You should not be worried

The incubation period for hepatitis a is relatively long. It can take up to a month before the victim falls ill, but you are contagious two weeks before you feel sick. If, on the other hand, you receive a vaccine shortly after you have met an infected person, there is an extremely small risk that you will spread the infection.

Should you be worried?

- No, I do not see that you should be worried. Mortality is low but there is a risk that many may become ill.