In this task, you are given one English sentence. The major part of the sentences talk about health-related topics, but some of the them describe an organization and its activities. Your job is to translate the given sentences into Swedish.

Up to 80% of infections may be without symptoms.
Upp till 80&nbsp;procent av infektionerna kan vara symtomfria.

After an incubation period of 10 to 90 days (three weeks on average) clinical symptoms appear:
Efter en inkubationstid på 10 till 90 dagar (i genomsnitt tre veckor) uppträder kliniska symtom:

Sexually transmitted infections is a group of infections that may transmit through vaginal, oral and anal sexual intercourse.

Sexuellt överförbara infektioner (STI) är en grupp infektioner som överförs genom vaginalt, oralt eller analt samlag.