Table 1. Attitudes Toward COVID-19 and Influenza Vaccines Among a Nationally Representative Sample of US Adults^a.

Attitude	Participants, weighted %
	All adults aged ≥18 y (n = 1430)		Only adults aged ≥50 y (n = 659)
	COVID-19 vaccine	Influenza vaccine	COVID-19 vaccine	Influenza vaccine
Effectivenessb
Very effective	42	40	50	49
Somewhat effective	28	38c	25	35c
Not too effective	13c	7	12c	5
Not at all effective	7c	4	6	4
Safetyd
Very safe	41	55c	51	65c
Somewhat safe	29	29	24	23
Not too safe	9c	4	9c	4
Not at all safe	9c	4	8c	2
Vaccination intentionse
Very likely	36	49c	49	62c
Somewhat likely	18	15	15c	9
Not too likely	17c	13	13c	8
Not at all likely	28c	22	23	21

^a Data come from a July 2023 nationally representative, probability-based online and telephone survey of 1430 US adults aged 18 years and older. Weighted percentages are displayed and results may not add up to 100% because of rounding and because responses of “Don’t know” and “Refused” are included in the total but are not displayed. See eAppendix 1 and eAppendix 2 in Supplement 1 for methodological details.

^b The full question was, “In general, how effective are [COVID-19 vaccines/flu vaccines] for most adults in protecting the person getting vaccinated from getting seriously ill or having to be hospitalized with [COVID-19/the flu]?”

^c Value is significantly higher than comparison group (COVID-19 or influenza) at P < .05.

^d The full question was, “In general, how safe are [COVID-19 vaccines/flu vaccines] for most adults?”

^e The full question was, “Now imagine that, in the future, an updated COVID-19 vaccine or booster becomes available each year, and public health officials recommend all adults get it each fall. In this scenario, how likely would you be to get an updated COVID-19 vaccine this coming fall, in 2023? How likely are you to get a flu vaccine this coming flu season, which is expected to run from this October in 2023 to next April, in 2024?”