@KNOWITALL I am the previous doctor here. (Hence my “I am Iron Man” link). Rarebear here. Unless you were thinking of another doctor.
You are correct about the brick in the wall analogy. Exactly because the flu shot has incomplete coverage it’s critically important for people who are healthy to get vaccinated. That way, the people who are at risk (like your mother) are less likely to be affected. Again, thank you for getting vaccinated despite your reservations. The flu vaccine is not an exact science. But I have seen too many healthy people go down not to write a question here on Fluther every year. I do it because I care about the people here.
I write a question like this every year, and every year I get the same response from the anti-science anti-vaxxers. I’m not going to change anybody’s mind about the flu vaccine and those who want to argue with me they can argue. They’re wrong, but nothing I’m going to say is going to convince them.
All I can do is do my small part to raise awareness. So that even if you’re healthy and have a “strong immune system” (whatever that means as it’s not a medical term), even if you get infected and get a subclinical flu (meaning that you don’t get all the symptoms), you’re still infectious, and they can infect the person with the “weak immune system” (again, whatever that means). You might not get sick, but they can die.
So once again, my hat is off to you for protecting those around you. I am proud that I may have had a small part in that.
@ARE_you_kidding_me You are correct, Caravan is very obscure, although they just won the Lifetime Achievement Award from Prog Magazine.