Assignment Task:
Suppose a Covid vaccine to be used in a particular city in China has been shown to be 78% effective in producing relative immunity to Covid-19 (E). Suppose surveys indicate that 99% of the residents of the city plan on getting the vaccine because of a government mandate (V). If biomedical experts claim 75% relative immunity is needed from the vaccine alone for relative herd immunity to be achieved, will this city achieve herd immunity from the vaccine alone? Yes? No? Explain. What level of immunity will likely be achieved by vaccination alone? Hint: Formula = Effectiveness of the vaccine and percent that plan to be vaccinated.
Probability formula to use =
Plug in the numbers:
Result and answer the question