Victorian Opposition Leader Matthew Guy will miss parliament's Question Time as he awaits the result of a PCR test.
Deputy Liberal leader David Southwick said Mr Guy had been taking daily rapid antigen tests, including one on Tuesday that was negative.
"In the last hour he's not been feeling as well as one would hope, so he's off to do the right thing and get a PCR test," Mr Southwick told reporters on Tuesday.
"Obviously Matthew won't be back here for Question Time, and we'll await those results."
Mr Guy attended late Victorian senator Kimberley Kitching's funeral on Monday despite telling media he felt unwell over the weekend.
"I was quite unwell on Saturday," he told reporters on Monday, before listing a number of events he had attended including a multicultural gala with 1500 people on Saturday night.
He also went to an event at the Shrine of Remembrance on Sunday, and a shadow cabinet meeting on Monday.
Mr Guy detailed his movements on Monday evening in response to the government questioning his whereabouts when the opposition revealed a reversal in its position on the state's mental health levy, without Mr Guy at the press conference.
It comes as Liberal MP Neil Angus returned to parliament on Tuesday, after meeting the house's vaccination requirements.
The member for Forest Hill previously refused to comply with parliament's vaccination mandate.
Asked whether the Mr Angus was vaccinated, Mr Southwick said, "I believe so".
"(They're) the rules and he's presented as such, he's back in parliament and we welcome him back," he said.
