School closed by swine flu in Berlin

Authorities say a Berlin high school has been shut down after eight pupils tested positive for swine flu, including three American exchange students.
Berlin health authorities say all eight students have just a mild case of the flu and are being treated while under quarantine at their homes.
The Alexander von Humboldt high school did not say how old the students were or where they were from in the United States. The school will be closed while other students are tested to see if they also have been infected.
The Berlin health department said Monday that the exchange students have been in Germany several weeks and it is unclear if they picked up the virus here or in the United States.