Wellington, April 26 NZPA - A positive result for influenza for 10 students is "quite a shock", says the principal of North Shore's Rangitoto College.

There is no guarantee the 10 students had swine influenza, but it was considered it likely.

Wellington, April 26 NZPA - Ten Auckland students are likely to have contracted swine flu testing has found.

Three teachers and 22 senior students from North Shore's Rangitoto College have been kept in isolation following their return yesterday from a three week language trip.

Wellington, April 26 NZPA - An Auckland school group is being tested for potentially fatal swine flu after returning from Mexico with flu-like symptoms.