Attempted

Vaccines

Vaccines prevent more than 2.5 million deaths each year by introducing herd immunity. This implies that a vaccinated person is unlikely to catch the disease because of the immunity developed in their body, and also implies that unvaccinated people are less likely to get sick because others are less to spread the disease to them. In fact, smallpox was completely eradicated only because of the strong immunisation program! Let's learn about vaccines!