https://www.cdc.gov/flu-vaccines-work/php/vaccine-effectiveness/haiven.html
Hospitalized Adult Influenza Vaccine Effectiveness Network | Flu Vaccines Work | CDC
The HAIVEN network estimates VE against severe flu illness, especially in older adults.
flu vaccines workhospitalizedadultinfluenzaeffectiveness
https://www.cdc.gov/flu-vaccines-work/php/vaccine-effectiveness/raiven-collaboration.html
Randomized Assessment of Influenza Vaccine Efficacy Network | Flu Vaccines Work | CDC
RAIVEN helped CDC evaluate how well flu vaccines protect people 18-64 years old against flu
flu vaccines workrandomizedassessmentinfluenza
https://www.cdc.gov/flu-vaccines-work/php/effectivenessqa/biases-to-consider.html
Biases to Consider in Vaccine Effectiveness Studies | Flu Vaccines Work | CDC
Observational studies of flu vaccine effectiveness are subject to at least three forms of bias: confounding, selection bias, and information bias.
flu vaccines workbiasesconsider
https://www.weforum.org/stories/2020/10/flu-vaccines-universal-immunizations-imunity-cold-health-covid-coronavirus-pandemic/
How do flu vaccines work? | World Economic Forum
Researchers at MIT, MGH, and Harvard are now working on strategies for designing a universal flu vaccine, that could work against any flu strain.
flu vaccines workhow doworldeconomicforum
https://www.cdc.gov/flu-vaccines-work/estimates-vaccine/index.html
About the Data: Measuring Vaccine Effectiveness | Flu Vaccines Work | CDC
CDC calculates flu vaccine effectiveness (VE) for multiple reasons.
about the dataflu vaccines workmeasuringeffectivenesscdc