Five people died from swine flu during the hajj, Saudi Arabia said Sunday, a relatively small number considering the event is the largest annual gathering in the world and is seen as an ideal incubator for the virus.
But some experts warned the true extent of the virus will not be known until pilgrims return to their home countries around the world.
Speaking on the final day of the Islamic pilgrimage, Abdullah al-Rabeeah said authorities recorded 73 cases - including the five deaths - of H1N1, commonly known as swine flu. He said only 10 percent of the some 2.5 million pilgrims were vaccinated against the virus.
"Our safety precautions have secured a very successful and safe hajj for pilgrims from around the world with no infectious disease outbreaks," al-Rabeeah said.