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American adoption of the seasonal flu vaccine


Influenza is an endemic viral disease that infects hundreds of millions each year. Most are only mildly ill and out of work for a week, but some hundreds of thousands die, mostly the elderly and immunocompromised. Vaccination is at present the most effective means to combat it.

In the United States, the CDC's Advisory Committee on Immunization Practices recommends annual flu vaccination for everyone over 6 months without specific contraindications. Despite this, uptake is mediocre, at only 45.3% of the 18-and-over population for the 2018-2019 season. Decades of ad campaigns and public health interventions have struggled to move the needle. One reason may be that the lowest-complying group, young adults with no preexisting conditions, may not understand how their own vaccination protects more vulnerable groups.

What value will the CDC's FluVaxView website report for flu vaccination coverage among adults ≥18 years for the 2020–2021 flu season?

The CDC's FluVaxView website usually publishes results in the fall after the relevant season (fall 2021 here). If no results have been published by 2021-12-31, this resolves ambiguous unless Metaculus has found a suitable replacement.

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