Infectious diseases were:
A) more frequently fatal in the past than they are now.
B) brought over to North America by European settlers.
C) the greatest threat to American health in the 19th century.
D) all of the above

Question

Quizplus · Accepted Answer

All of the statements are correct. Infectious diseases were indeed more frequently fatal in the past due to the lack of modern medicine and vaccines. European settlers brought many diseases to North America that the indigenous populations had no immunity against, causing widespread fatalities. In the 19th century, infectious diseases were the greatest threat to health, as medical knowledge and hygiene practices were not as advanced as they are today.

Infectious Diseases Were