Ahmad, from Madagascar, has been head of CAF since March 2017 but was suspended by the global body on Monday for "governance issues".
Ahmad, from Madagascar, has been president of the African Football Confederation (CAF) since March 2017 and was standing for re-election when FIFA banned him for "governance issues".
A CAF press release said Ahmad, who had been in Morocco for the Confederation Cup final on Sunday, had arrived in Cairo on Wednesday and started to present mild flu symptoms. He underwent a test on Thursday which came back positive on Friday.
Court of Arbitration for Sport to rule on the annulled African Champions League final, decide on means to resolve dispute
The Court of Arbitration for Sport will arrive at a verdict this month on the annulled match between Esperance of Tunisia and Wydad Casablanca of Morocco
The VAR is scheduled to be used for the quarter-finals of the Africa Cup of Nations and for the following stages of the tournament
The president of the Confederation of African Football (CAF), Ahmad Ahmad, held in a corruption probe, was released without charge in France on Friday, the Marseille public prosecutor said.
US President Donald Trump warns nations opposing North America's 2026 World Cup bid with political repercussions
Trump tweeted: "It would be a shame if countries that we always support were to lobby against the U.S. bid. Why should we be supporting these countries when they don't support us (including at the United Nations)?"
It was reported on Sunday that Infantino was being investigated for claims he had promised to accelerate payments of development money to national football associations if the presidents voted for Ahmad.