In this undated handout photo supplied by Berkhan's family via the New Zealand Herald, Auckaland's Rangitoto College student Jamie Berkhan, 16, smiles. Twenty-two students and three teachers from Rangitoto College - New Zealand's biggest high school with some 2,500 teens - had a whirlwind of travel, sightseeing, staying in hostels, finishing up with "home stay families" in Mexico City and brought home swine flu infection. AP Photo logo AP Photo 34 months ago

In this undated handout photo supplied by Berkhan's family via the New Zealand Herald, Auckaland's Rangitoto College student Jamie Berkhan, 16, smiles. Twenty-two students and three teachers from Rangitoto College - New Zealand's biggest high school with some 2,500 teens - had a whirlwind of travel, sightseeing, staying in hostels, finishing up with "home stay families" in Mexico City and brought home swine flu infection.