Our oldest son never had a chickenpox outbreak, though he had multiple exposures. When he was 15 and at the doctor for some other reason, I requested that his blood be checked for c-pox titer, as the infection can cause more problems in teens/adults. Doc wanted to give him the vaccine, but I held my ground. Turns out, he had a positive titer, so he likely had a sub-clinical case. He had shingles last year (at age 39) which pretty much confirms that he had c-pox in the past.
Our oldest son never had a chickenpox outbreak, though he had multiple exposures. When he was 15 and at the doctor for some other reason, I requested that his blood be checked for c-pox titer, as the infection can cause more problems in teens/adults. Doc wanted to give him the vaccine, but I held my ground. Turns out, he had a positive titer, so he likely had a sub-clinical case. He had shingles last year (at age 39) which pretty much confirms that he had c-pox in the past.