In a statement released late last night, Mr Morrison confirmed he took a PCR test after developing a fever on Tuesday evening.
He had been due to attend an event in support of the Ukrainian community at the Sydney Opera House but cancelled due to his symptoms.
Mr Morrison said he was experiencing flu-like symptoms and would spend the next week recovering in isolation at home in Sydney.
"I had tested myself daily since Sunday, including this morning, with all tests returning a negative result," he said.
