The Vatican said the 83-year-old pontiff had decided not to go ahead with official audiences after he skipped a church service yesterday.
It comes as Italy is reeling from a worsening
The Vatican declined to say whether the Pope will be tested for the virus.
A spokesman said he celebrated Mass as usual this morning and will go ahead with some private meetings.
Yesterday he was too unwell to travel to a mass on the other side of Rome and stayed in the Santa Marta
His spokesman said he had a "light indisposition".
Concerns for his health had been raised the day before after he was seen coughing and blowing his nose during an Ash Wednesday service in St Peter's Basilica.
Earlier on Wednesday - the first day of Lent - Francis appeared in good spirits as he greeted a large crowd at a general audience in St Peter's Square.
Many of the faithful wore face masks, but others did not as they kissed
On Sunday Francis mingled with 40,000 faithful in Bari, hugging and kissing people in the crowds after expressing his support for those infected by
The Argentine pope has generally enjoyed good health.
But he lost part of one lung after suffering TB as a young man in Buenos Aires, and suffers from sciatica, which makes walking difficult.
- Source, The Sun