OK, here is the answer, (drum roll) I had the shingles. The shingles comes from the same virus as the chicken-pox. So although I had fully recovered from the chicken-pox at five, when I got the shingles at ten that exposed my younger siblings to the virus, and from that they caught the chicken-pox.
A thought for the day:
Do you know who Jesus was?Or do you know who Jesus is?