I expect that both of you get flu often but your body recovers so well that you don't know about it.
I recall from the last bad outbreak of a new type of flu that about 20% of childen in one area got it, but when they did the testing, they found it was closer to 100% who can it, but only 20% were ill.
I recall from the last bad outbreak of a new type of flu that about 20% of childen in one area got it, but when they did the testing, they found it was closer to 100% who can it, but only 20% were ill.