Thank you for this and your other comments which reflect my current understanding about sickness and vaccines. You know what we don’t talk about enough is that military investigation (I have no idea what name to even look up) into street urchins in India. Apparently the ones who don’t die have iron clad immune systems and the US military wanted to get themselves some of that for their own soldiers. Thing is, there are no short cuts to good health or exposure at the point of a hundred needles. When we will learn our lessons? The arrogance is pathetic.