My mother-in law swears that my husband had a mild case of chicken pox when he was six weeks old and his sister had a full blown case. But, when my husband was 38 years old he got a full blown case of chicken pox- two weeks after we had been to a LLLI Conference with several thousand in attendance. The kids didn't get it them, but 4 years later-after we attende another LLLI conference all 4 kids got full blown cases of chicken pox. Exactly two weeks later. I guess that when you have several thousand folks-lots of them kids-in one place at one time- you're bound to "get" something! My 5th child got them last year and hadn't been to a LLL conference near the time of his break-our. I broke out in chicken-pox when I was 3 years old on a plane in the middle of the Pacific Ocean! Nancy Sherwood Perth, Australia