Indian Sikh pilgrims and Pakistani travellers fill in medical information forms about swine flu at immigration at the Attari International Railway Station, between India and Pakistan, about 35 km from northern Indian city Amritsar, on October 12, 2009. The Indian government has sounded a high alert for swine flu at all international entry and exit points. Getty Images logo Getty Images 1 month ago

Indian Sikh pilgrims and Pakistani travellers fill in medical information forms about swine flu at immigration at the Attari International Railway Station, between India and Pakistan, about 35 km from northern Indian city Amritsar, on October 12, 2009. The Indian government has sounded a high alert for swine flu at all international entry and exit points.