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%
effectiveness of not being infected by the Virus. On the other hand, the part of the population
that remains unvaccinated even if they feel healthy, they can get infected very fast, and the
virus would continue to spread over the majority of the population that have not received the
Explain Part C of the Figure.
On the third picture, you can observe the representation of how the majority of the population
got vaccinated, there will come a time where the virus will no longer be able to spread between
humans. Imagine that the 80% of the population get vaccinated, although there is a small group