@ mumofmadboys-
We are religious Jews, and have also been advised to see this as something only God can understand.
All we can do is to say Psalm 121 every day - "Lift your eyes to the mountains, from where God's help comes."
Specially worried today when my friend and I visited, as regularly in the past, a 93 yr old in an old age home and she was quite poorly. They had said she was OK before we went, but I won't go into details. She obviously wasn't well.
We've told her relatives, poor old soul.
The staff were obviously worried, gave us facilities to wash our hands before we left.
It's a mystery.