-We are doing a simulated STI outbreak in class as a demonstration of the spread

Question

-We are doing a simulated STI outbreak in class as a demonstration of the spread of disease. While this activity is only simulated, and in small scale, it reflects the process by which a single infected individual can initiate a chain of transmission that can reach the other side of the world.

For this simulation, there will only be one 'infected' individual at the start of the activity. For each round of exchanges, partners will exchange 'bodily fluids'. During this process, if an 'infected' individual interacts with an uninfected individual, the infection is spread to that individual. Importantly, during each exchange, each individual only transfers 'bodily fluids' with one other individual (one transfer per person per round), and this has to be a different partner each round.

Given that only one individual will be 'infected' at the start of the activity, how many individuals would be 'infected' after three rounds of transfer?

8

4

12

16

3

Explanation / Answer

8 individual will be affected after 3 rounds

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