Question

directions
answer the following questions.
1 how did the idea of healthy carriers influence what happened during the typhoid epidemic?
a it caused newspapers to begin using the phrase “typhoid mary.”
b it explains why mary was detained although she appeared healthy.
c it led officials to expand prison stays in order to keep the illness from spreading.
d it caused changes in the way people were trained for jobs after being released from prison.
2 what is one way the events of the typhoid epidemic changed people’s ideas about disease?
a it proved that disease was not related to sanitation.
b it showed that disease could infect all kinds of people.
c it made people question epidemiologists’ understanding of disease.
d it convinced journalists not to share information about people affected by disease.

Explanation:

1. For question 1: The concept of healthy carriers means a person can harbor and spread a pathogen without showing symptoms. Mary Mallon (Typhoid Mary) was a healthy typhoid carrier, so this idea justifies her detention despite appearing well, as she was spreading typhoid fever unknowingly. Option A is incorrect because the phrase came from her case, not the carrier idea causing the phrase. Options C and D are unrelated to the healthy carrier concept and the typhoid epidemic context.
2. For question 2: The Typhoid Mary case demonstrated that a healthy person could spread disease, proving that disease could infect and be transmitted by all kinds of people, even asymptomatic individuals. Option A is wrong as the epidemic highlighted the link between sanitation and disease spread. Option C is incorrect because it actually advanced epidemiologists' understanding rather than causing doubt. Option D is false as journalists widely reported on Mary and the epidemic.

Answer:

1. B. It explains why Mary was detained although she appeared healthy.
2. B. It showed that disease could infect all kinds of people.