As someone who gets a wicked cold sore every year I always hate hearing about stuff like this. It's terrifying what can happen to babies if you kiss them with HSV-1.
Some people have it, but some people have it worse. Some people get it and build an immune response quickly, limiting the spread it seems. Others don't and the virus seems to take a stronger foothold.
My wife has oral HSV. I don't. We're not careful and we've been together for years with many breakouts. I don't think I've avoided it because I'm magically immune. My guess is that I have it, but I managed to limit it to the degree that I never get a breakout.
Now that I think about it, my wife hasn't had a breakout in two years, pretty much since getting pregnant. Weird.
I suspect there is a degree of ‘magical immunity’ present for the people who don’t test positive for it.
I know I’ve been exposed countless times from similar experiences, and have always (100% of the time, n==10ish by now) tested negative for it.
Is that so weird? With how prevalent it is, I don’t see how it’s actually possible for <100% of people to not have it otherwise. Unless some large percentage of people are literally living in a bubble, anyway.
Pregnancy boosts the immune system, so that may be it. Btw, the amino acid L-Lysine may also help. Many people report positive results on regular intake and one of them is me.
During pregnancy the mothers immune system is muted, which prevents "rejection" of the fetus.
However, in an almost "parting gift" fashion, the departing fetus actually leaves behind immune cells that can provide years of boosted immune activity.
I Googled "redhead herpes" and the first result was for "Virucidal activity of ginger essential oil against caprine alphaherpesvirus-1". I found that a weirdly funny bahaviour of the Google search natural language parser
I find it an extremely annoying behaviour, and it seems to be implemented in such a simplistic way. If one searches for "redhead" then it's likely one also wants results for "ginger", but not all such results, only the one where "ginger" has the same meaning!