What did efforts made in Canada and the United States to control the use of opium stem from?

Question

Quizplus · Accepted Answer

Efforts made in Canada and the United States to control the use of opium stemmed from public fear of the Chinese. During the late 1800s, Chinese immigrants were associated with opium smoking and opium dens, which led to anti-opium campaigns and discriminatory laws. Opium became linked to negative stereotypes of the Chinese and was seen as a threat to the nation's health and morality.

What Did Efforts Made in Canada and the United States