Herd immunity is more important than ever with the increase in the number of variant strains. To help fight the spread of COVID-19 it is important that everyone that is eligible to receive the vaccine gets it. There are still many unknown factors that can affect COVID-19 herd immunity, we know that if the new strains of COVID-19 are more contagious than the original disease, then the R-naught will increase. So as the variant strains become more prevalent in the United States, more people will ne

While other countries have been left no choice but to include herd immunity as part of its solution to Covid-19 - Australia has ruled it out. #9Today | TODAY