Dublin - Ireland's Six Nations match with Italy in Dublin on March 7 has been postponed due to the coronavirus epidemic, the Irish Rugby Football Union (IRFU) announced on Wednesday.
The other matches with Italy teams that weekend - the Under-20s and women's internationals - have also been postponed.
"We were then advised, formally, that The National Public Health Emergency team has determined that the series of matches should not proceed, in the interests of public health. The IRFU is happy to comply with this instruction."
Harris welcomed the IRFU's decision by telling the BBC: "I very much appreciate the importance that they too attach to public health."
At the time of the postponements, England were one win away from the Grand Slam but lost 20-14 to Ireland when their delayed fixture was eventually played in Dublin.
The outbreak is also having an impact upon the global sporting calendar, with the postponement of the Chinese Formula One Grand Prix in Shanghai, which had been due to take place on April 19.