Muhammad Ali 21 during an elimination bout following Rocky Marciano's retirement. Mike Tyson broke both records in 1986 when he defeated Trevor Berbick to win the heavyweight title at age 20. Soon after the Liston fight, Clay changed his name to Cassius X, and then later to Muhammad Ali upon converting to Islam and affiliating with the Nation of Islam. Ali then faced a rematch with Liston scheduled for May 1965 in Lewiston, Maine. It had been scheduled for Boston the previous November, but was postponed for six months due to Ali's emergency surgery for a hernia three days before. The fight
Ali S. Khan hemorrhagic fever, monkeypox, Rift Valley fever, avian influenza, severe acute respiratory syndrome (SARS), the Asian tsunami, and the initial public health response to Hurricane Katrina in New Orleans. In 2016 Khan published "The Next Pandemic" (with William Patrick). In it he recounts some of his experiences responding to outbreaks all over the world, including many of those mentioned above. Besides his personal experiences, he also provides a great deal of background information for readers interested in public health and emerging diseases. Ali S. Khan Rear Admiral Ali S. Khan is an American practicing physician and former Director of the Office