“Mako is not in camp on medical grounds. He is not sick, but it is a precaution,” an RFU spokesperson said.
Vunipola, who has shown no symptoms of the disease, was initially expected to miss the clash with the
Grand Slam champions after traveling to Tonga recently for unspecified personal reasons. The trip also saw
him miss England's victory over Ireland on 23 February.
The Six Nations has already been affected by the coronavirus, with Ireland’s scheduled fixture against Italy
in Dublin on 7 March postponed.
There have been 51 coronavirus cases in the UK, while the first confirmed case of the virus in Hong Kong
occurred on 23 January. It has since risen to 100 cases in the Chinese city.