Bosses at Nottingham City Transport have confirmed its managing director was at a summit earlier this month where one of Britain's nine confirmed coronavirus cases was also present.
The person identified with the virus was at the UK Bus Summit in London, near Parliament. Around 250 people are thought to have been there.
The bus company said its managing director, Mark Fowles, attended.
However, a spokesman for NCT said: "He’s been tested and is fine."
A spokesman for Trentbarton confirmed no one from the company was at the summit.
Nottingham South MP Lilian Greenwood, who was also at the conference last week, tweeted she was feeling "completely well" but that she was cancelling public engagements until February 20 as a precaution.
Health bosses advised the attendees to stay indoors and avoid contact with other people, like normal flu.
They were also told to ring 111 to inform them they'd been in contact with the confirmed case.
"Please follow this advice until 20th February, even if your symptoms are minor," a Public Health England letter read.
More than 71,000 people around the world have been diagnosed with the virus and more than 1,700 have died.
In total, a handful of people in the UK have been diagnosed.
Meanwhile, a Nottinghamshire man is among thousands who have been quarantined on a cruise ship in Japan following the outbreak of the virus.
