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how to calculate viral titer? - (Jun/30/2010 )

Hi, I'm looking to calculate viral titers (retro) that I'm getting from Phoenix cells. I'm not sure what's the best route, I want something along the lines of a number of viral particles/vol of viral supernatant as a result. I've been told this can be done but nobody seems to know quite how :lol: Help would be appreciated.


if you want to know the exact number of particles you need to do Plaque Assay.