Question

19.
Epigenetic changes resulting from childhood trauma can be passed down to future generations.

False

True
20.
In a theoretical model of disease transmission, if Person A has an R₀ (basic reproduction number) of 2.5 for a respiratory infection and interacts with 100 people in a closed environment, approximately how many secondary infections would occur, assuming no immunity in the population?



250 infections

25 infections

2.5 infections

100 infections

Answer 1

19. True — there is evidence that trauma can produce epigenetic changes that may affect subsequent generations, although the extent and mechanisms in humans remain under study.

20. 2.5 infections — R₀ is the average number of secondary cases caused by one infected individual in a fully susceptible population.