Question

Common/single source vs propagated types of epidemics.

A) Common source epidemics involve a single contaminated source, while propagated epidemics involve multiple sources.
B) Common source epidemics spread through direct person-to-person transmission, while propagated epidemics involve exposure to a common source.
C) Common source epidemics have a longer incubation period, while propagated epidemics have a shorter incubation period.
D) Common source epidemics are caused by bacteria, while propagated epidemics are caused by viruses.

Answer 1

Common source epidemics involve a single contaminated source, while propagated epidemics involve multiple sources. Common source epidemics can have shorter incubation periods, while propagated epidemics can have longer incubation periods. Both bacteria and viruses can cause common source epidemics, while propagated epidemics are often caused by viruses. Option A is the correct answer.

Step-by-step explanation:

Common source epidemics involve a single contaminated source, while propagated epidemics involve multiple sources. Common source epidemics spread through exposure to a common source, while propagated epidemics spread through direct or indirect person-to-person contact. Common source epidemics are typically associated with shorter incubation periods, while propagated epidemics can have longer incubation periods. Common source epidemics can be caused by both bacteria and viruses, while propagated epidemics are often caused by viruses.