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.

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:

Eventually as immunity increases among humans, and the pandemic virus changes the pandemic strain becomes part of and tends to dominate the mix of seasonal influenza viruses.
När immuniteten sedan ökar hos människor och pandemiviruset förändras blir pandemistammen en del av och tenderar att bli det vanligaste bland säsongsinfluensavirusen.

The European Programme for Intervention Epidemiology Training (EPIET) provides training and practical experience in intervention epidemiology at the national centres for surveillance and control of communicable diseases in the European Union (EU).

Det europeiska programmet för utbildning i interventionsepidemiologi (EPIET) erbjuder utbildning och praktik i interventionsepidemiologi vid de nationella centrumen för övervakning och kontroll av smittsamma sjukdomar inom EU.