Hawzah News Agency-Pope Francis on Saturday said an “epidemic of animosity” against people of other races or religions was hurting the weakest in society, striking a note of caution against the rise of populist nationalism.

Little more than a week after Donald Trump was elected the next U.S. president, buoying anti-immigrant parties in Europe and elsewhere, the pope noted “how quickly those among us with the status of a stranger, an immigrant or a refugee become a threat, take on the status of an enemy…

“An enemy because they come from a distant country or have different customs. An enemy because of the colour of their skin, their language or their social class. An enemy because they think differently or even has a different faith,” he said at a ceremony to induct new cardinals.

While not naming any country, Francis appeared to refer to anti-immigrant and anti-Muslim attitudes that surfaced during the U.S. campaign and since the election.

The U.S. Justice Department said on Friday it was investigating reports of intimidation and harassment in schools, churches and elsewhere since the election.

One of the new cardinals, Archbishop Blase Cupich of Chicago, told the pope was “very much aware of the fact that if that (animosity) is not checked, it is very contagious and it can spread quickly, it can be like a wildfire”.

In his homily, the pope said the Church itself was not immune to “a virus of polarisation and animosity”, an apparent reference to a public challenge by four conservative cardinals, who accused him of sowing confusion on moral issues.

In the “consistory” ceremony in St. Peter’s Basilica, Francis appointed 17 new cardinals, 13 of them under 80 and thus still eligible to succeed him.