Vaccine efficacy and effectiveness is not really super complicated. The cdc gives a decent explanation here
https://www.cdc.gov/csels/dsepd/ss19.../section6.html
https://www.cdc.gov/csels/dsepd/ss19.../section6.html
As of 9/21/10: As of 9/13/10: College Hockey 6 College Football 0 BTHC 4 WCHA FC: 1
As of 9/21/10: As of 9/13/10: College Hockey 6 College Football 0 BTHC 4 WCHA FC: 1
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