Women Aged 50- 60 At Greatest Risk of 'Long Covid,' UK Study Suggests

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8. The ship was crowded and almost all crew was SE Asian

So looking back I have to think both me and my wife received a milder form of infection.
I can't remember a dry cough ever before, it is usually a productive mucous cough.
Of course on February 29th covid-19 was not the big news so we thought nothing of it.
My theory is if you get a very small dose of virus cells, your body may be able to fight it off.
Something similar to the vaccine effect. So both of us did not come down with severe symptoms.
We never were tested so will never know for sure.