[metmom]

By the time a person is even mildly sick it’s very likely the people at home with him are already infected themselves and just incubating.

[Grampa Dave]

“By the time a person is even mildly sick it’s very likely the people at home with him are already infected themselves and just incubating.”

If they had gone outside in the sunlight and fresh air, they might have gained immunity.

So, stay inside and shelter cower and get really sick.