Health minister Nadine Dorries has confirmed she has tested positive for coronavirus.
The Conservative MP is now reportedly self isolating.
According to reports revealed on Tuesday night Ms Dorries, who represents Mid Bedfordshire, fell ill last Friday.
She said in a statement to the BBC: "I can confirm I have tested positive for coronavirus.
"As soon as I was informed I took all advised precautions and have been self isolating at home.
"Public Health England has started detailed contact tracing and the department and my parliamentary office are closely following their advice."
Health secretary Matt Hancock said on Twitter: "Really sorry to hear Nadine has tested positive for coronavirus.
"She has done the right thing by self isolating at home, and both NHS and PHE (Public Health England) staff have been brilliant.
"We all wish her well as she recovers.
"I understand why people are worried about this disease.
"We will do all we can to keep people safe, based on the best possible science."
According to reports in The Times, Ms Dorries has met 'hundreds of people in parliament in the last week' and attended a Number 10 reception with Prime Minister Boris Johnson.
She is also said to have played a key role as a health minister in drawing up plans to tackle the outbreak of the virus.
As Ms Dorries confirmed, officials are said to have started a 'contact tracing' operation to determine whether anyone else has been infected.
The UK death toll from coronavirus now stands at six.
A total of 373 people have been diagnosed, with 23 of those cases in the Greater Manchester area.
