Links to an article and the actual study of how queen bees transfer immunity to their offspring. 
The article:
http://news.discovery.com/animals/insects/queen-bees-vaccinate-all-of-their-babies-150731.htm
The study:
http://journals.plos.org/plospathogens/article?id=10.1371/journal.ppat.1005015
The study has some good data about bee eggs, the article is just about what you would expect it to be, an article.

Cheers

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