When DS2 was about a few months old his older brother had chicken pox. Not a severe case and he got better. No spots on DS2 at all. Then when DS2 was 4 his little sister got chicken pox, she was covered but no spots on DS2.
So is it likely he's naturally immune? Did he have it and I didn't notice? If I want to get his immunity checked will a doctor be willing?
He's now nearly 7 so been exposed at school no doubt too.