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.

Therefore, cases among hikers or backpackers in wilderness areas are common, and waterborne outbreaks due to inadequate treatment of drinking water are common.
Därför är infektioner med Giardia vanliga bland vandrare i vildmarksområden, och vattenburen smitta på grund av otillräcklig vattenrening förekommer ofta.

Influenza is a large family of different viruses, some of which affect humans and many of which affect other animals and especially birds.
Influensavirusen är en stor familj med olika virus, varav vissa drabbar människan och många drabbar andra djur, särskilt fåglar.

intervention epidemiology, microbiology, public health in general;

interventionsepidemiologi, mikrobiologi, allmän folkhälsa.