Pope Francis is pressing ahead with a four-day visit to Luxembourg and Belgium despite coming down with a mild flu, in a trip expected to highlight the needs of migrants and to feature a meeting with survivors of abuse by Catholic clergy.

Veteran Vatican observers in Rome, like Francis X. Rocca, formerly of The Wall Street Journal, point out that Belgium was the second country to legalize euthanasia, after the neighboring Netherlands, in 2002.

The move was described as a “precaution” in the statement from the Vatican days before he is to embark on a trip to Belgium and Luxembourg.