This is the actual document that provides guidelines to labs to assess breakthrough infections
https://www.cdc.gov/vaccines/covid-19/downloads/Information-...
but it is no longer available at that location, for some reason, and here is a link to the old version..
https://web.archive.org/web/20210429184157/https://www.cdc.g...
Also, nice try to look up and discredit what I am saying on the basis of the age of my account. I am afraid such tactics won't fly well here.