From the Catholic News Agency:
Discussing COVID-19 vaccines during an in-flight press conference on Wednesday, Pope Francis said that “even in the College of Cardinals there are some deniers.” ]A reporter] recalled that the Pope had described receiving the COVID-19 vaccine as an “act of love” and asked how it was possible for Christians with contrasting views to be united on the issue.
The pope said: “Humanity has a history of friendship with vaccines. As children, we got them for measles, for other things, for polio. All the children were vaccinated and no one said anything.”
“Then this [opposition] happened. This was perhaps due to the virulence, the uncertainty not only about the pandemic, but also about the different vaccines, and also the reputation of some vaccines which are nothing more than distilled water. This created fear in people.”