Explain Part A of the Figure.
On the first picture you can observe the representation of how this contagious disease called
Covid-19 can spread very quickly between humans. Although, the main group is composed of
healthy people, but they are not vaccinated, if there are two infected humans, the healthy
group have a high probability of becoming infected. In addition, the number of infected people
doesn’t matter, is there are only two or three who carry the virus, more than the 50% of
healthy humans would have a very large chances of being infected.
Explain Part B of the Figure.
On the second picture, you can observe the representation of how the population of humans
that are receiving the Covid vaccine continues smaller than the other part that they didn’t want
to get the vaccinate. Also, this small group of vaccinated people have almost 100%
