2 ms·

I don't really see any obvious trend in this graph over the last 13 years: https://www.cdc.gov/flu/professionals/vaccination/effectiveness-studies.htm https://

by moyix 9y ago

I don't really see any obvious trend in this graph over the last 13 years: https://www.cdc.gov/flu/professionals/vaccination/effectiveness-studies.htm https://www.cdc.gov/flu/professionals/vaccination/effectiven...