Brazilian President Luiz Inacio Lula da Silva has been diagnosed with mild pneumonia and will delay a planned trip to China by a day, leaving on Sunday, the presidential palace and his doctor said.
Lula's physician, Dr Roberto Kalil, told Reuters that the president is in good health after undergoing hospital tests on Thursday night and is responding well to antibiotics.
Lula was initially supposed to leave for China early Saturday for a visit aimed at refreshing ties with Brazil's largest export market.
"The president is fine. He has already improved from yesterday to today. The trip on Sunday is maintained," Kalil said after visiting Lula at the presidential palace earlier on Friday.
The president will be accompanied on the trip by a large delegation that includes half a dozen cabinet ministers, plus governors, lawmakers and 240 business leaders, over a third of whom are from Brazil's farming sector.
Chinese leader Xi Jinping is set to meet with Lula on Tuesday in Beijing. Lula will also visit Shanghai later in the week.
Most of Lula's Friday commitments were cancelled, but he will still attend an afternoon meeting with ministers and government leaders in Congress, the president's office said.