In this video, you will learn about the symptoms associated with COVID-19. They are quite a bit different from a regular cold. The disease seems to start with a fever, followed by a dry cough. Around 80% of confirmed cases…
In this video, you will learn about the basic principle used in combating epidemics called herd immunity. Having susceptible individuals protected as a result of a significant proportion of the population (or the herd) being immune, allows for infectious disease…