A lot of it depends on the infectivity, so we don't know that for this, COVID-19, since it's new, but what we know from other infectious diseases is you need about 85 to 95 percent of your ...

Herd immunity, then, only affects what happens to that 5 percent of people who are going to get infected from exposure regardless of whether or not they’re vaccinated.

Herd immunity would mean that enough people have an exposure that then protects people who either would be at high risk or can’t get vaccinated once one is approved.

Herd immunity requires 75% to 80% of Americans to get the COVID vaccine, but one medical expert thinks the nation may not be able to reach it this year if vaccine hesitancy isn't overcome and more ...

Herd immunity will happen, he explains, when COVID-19 "has so little opportunity to find a happy home here that it begins to die off and isn't an important part of our lives anymore." ...

Achieving herd immunity is considered the solution to containing COVID-19 in the US, but the reality is much more complex, experts say.

Researchers are theorizing that herd immunity may play a role in California's slow spread. Here's a breakdown of what this means and the pitfalls of achieving herd immunity as a country.

Achieving herd immunity means it is unlikely that a disease, in this case COVID-19, can spread from person to person even if a small percentage of the population is not immune.

Achieving herd immunity means it is unlikely that a disease, in this case COVID-19, can spread from person to person even if a small percentage of the population is not immune.