COVID-19：美国2分之1，未接种疫苗：皮尤研究中心
皮尤研究中心：
2020年4月和本月初，我们对美国10,000名成年人进行了调查，“如果可以立即接种新的Corona疫苗，该怎么办”。
互联网调查：
四月调查：
“可能未接种”和“从未接种”的总数为27％。
本月的调查：
这是显着增加到49％。
不接种的原因：
最常见的原因是“对副作用的担忧”
下一个最常见的原因是“我想进一步了解它的有效性”。
疫苗的安全性和有效性：
在美国，“对疫苗的安全性和功效持否定态度的团体”从事“拒绝接种疫苗等活动”。
NHK新闻
https://www3.nhk.or.jp/news/html/20200930/k10012640561000.html
U.S. Public Now Divided Over Whether To Get COVID-19 Vaccine
the share of Americans who say they would get vaccinated for the coronavirus has declined sharply since earlier this year.
About half of U.S. adults (51%)
now say they would definitely or probably get a vaccine to prevent COVID-19 if it were available today;
nearly as many (49%) say they definitely or probably would not get vaccinated at this time.
Intent to get a COVID-19 vaccine
has fallen from 72% in May, a 21 percentage point drop.
The share who would definitely get a coronavirus vaccine now stands at just 21% – half the share that said this four months ago.
Pew Research Center
Tesla CEO Elon Musk: Don’t plan to get coronavirus vaccine for myself or family – Times of India