Up until about ten years ago, those who couldn’t get vaccines due to health reasons didn’t really have to worry – herd immunity protected them. From polio, measles, mumps, and more. Because everyone around you had the vaccine, and therefore didn’t have it, you didn’t have to worry.

Dr. Anthony Fauci warns, however, that the US not might be able to enjoy herd immunity if and when a COVID-19 vaccine is found.

The high numbers of Americans who say they would not get a vaccine to protect them from COVID-19 scares him, and he believes that even a vaccine with a 70% effectiveness rate will not be enough to quell the pandemic, if not enough people are willing to get it. According to a recent CNN poll, one-third of Americans said they would not go out of their way to get a vaccine, even if it was inexpensive or easily available.

With extensive government support, there are three coronavirus vaccines that are expected to start studies within the next three months.