CBS News’ Debora Patta reports from the capital city of Pretoria, South Africa, where Mandela is being treated, that doctors say he’s breathing on his own|Zuma said at the time that Mandela was in good shape, but the footage — the first public images of Mandela in nearly a year — showed him silent and unresponsive, even when Zuma tried to hold his hand|Because of Mandela’s advanced age – he is 94 years old – officials say that it will take a lot longer for the former president to recover from the infection, Patta reports|Elsewhere in the city, some worshippers prayed for Mandela during an outdoor gathering|A presidential spokesman told Patta, “We all want Nelson Mandela to live forever, but we have to accept that he is human and adjust our expectations accordingly.” Mandela was treated in a hospital several times in recent months, with the last discharge coming on April 6 after doctors diagnosed him with pneumonia and drained fluid from his lung area|”Nelson Mandela is a father to South Africa and South Africans; every time he is admitted to hospital we feel saddened along with the rest of our country,” the Democratic Alliance, the main political opposition party, said in a statement|Mandela’s wife, humanitarian activist Graca Machel, canceled an appearance at an international forum on hunger and nutrition in London on Saturday, citing “personal reasons,” said Colleen Harris, a spokeswoman for the meeting|”During the past few days, former President Nelson Mandela has had a recurrence of lung infection,” said a statement from the office of President Jacob Zuma}