Tell the son anyway. Entirely separate from the vax argument. However, since he can still catch the kungflu, even though vaxxed, the problem may solve it self. Not enuff to divorce over, IF that is the only problem. (I took the moderna shots so I that I can see my folks who are in their 90s, in assisted living.)
Yes he can still catch it...
My neighbors nephew always wanted to join the Marines He graduated from high school and was to join a few months ago. He got the jab first and then went to Basic. While he was there there was an outbreak and he had to go into quarantine the day he arrived...One thing led to another and he was in and out of quarantine as other guys got the Flu. He never got near the right barracks for his Basic Training....
Then finally he got the Wu Hu Flu during his 3rd lot of quarantine. Then after the 2 months of quarantine and more weeks of recovery they just sent him home and wouldnt even let him start Basic....
They kid was heartbroken but they wont let him join again because now hes had the Wu Hu Flu...and might be contagious...and to think he was fully vaxxed...