Smallpox Vaccines: Testing a Promising Idea

• ○A. The author treats those questions as disputes settled by Jenner's first published findings.
• ○B. The author considers those questions reasonable issues that called for further investigation.
• ○C. The author presents those questions as more important than vaccination's eventual results.
• ○D. The author views those questions as evidence that doctors preferred older practices.

A reader might reasonably ask why doctors did not immediately accept vaccination.A promising result, however, was not the same as dependable protection for entire communities.Early supplies could be difficult to preserve and transport, and their quality was uneven.Doctors also lacked today's understanding of viruses and immune responses.Questions about reliability therefore deserved investigation, even when some objections rested on misunderstanding.

• ○A. To compare how variolation was practiced in different parts of the world.
• ○B. To describe why early doctors preferred variolation to newer medical approaches.
• ○C. To explain why smallpox protection required discoveries, improvements, and coordinated work.
• ○D. To argue that Jenner's reputation should rest mainly on his publishing methods.

• ○A. Health workers identified cases and traced their contacts.
• ○B. Early vaccine supplies could be difficult to preserve.
• ○C. Variolation eventually reached Europe and the Americas.
• ○D. Jenner published findings about his investigation in 1798.

• ○A. By comparing the medical training of people who used the practice
• ○B. By suggesting that its benefits came from improved vaccine storage
• ○C. By questioning whether the practice actually reached other continents
• ○D. By acknowledging protection while explaining the risk of serious infection

• ○A. It credits him with improving vaccine storage rather than testing protection.
• ○B. It separates his investigation and publication from observations already circulating.
• ○C. It describes his findings as less useful than the practice of variolation.
• ○D. It attributes his published findings to doctors who understood immune responses.

• ○A. They allow the author to explain how valid criticism could guide improvements.
• ○B. They allow the author to argue that early concerns outweighed later success.
• ○C. They allow the author to shift responsibility for discovery away from Jenner.
• ○D. They allow the author to explain why variolation remained the better approach.

• ○A. “Contamination and inconsistent preparation were genuine problems in early vaccine production.”
• ○B. “Treating those problems as reasons to improve production was different from treating them as proof that protection was impossible.”
• ○C. “Later experience strengthened the case for vaccination, but it did not make every criticism irrelevant.”
• ○D. “Over time, better methods of preparation, storage, and quality control helped turn a promising approach into a more reliable tool.”

• ○A. It introduces a doubt before suggesting that vaccination was unnecessary.
• ○B. It contrasts the effectiveness of vaccines in different countries.
• ○C. It distinguishes Jenner's opinion from the opinions of later health workers.
• ○D. It establishes a benefit before identifying what vaccines alone could not do.

• ○A. A memorable narrative centered on an individual achievement
• ○B. An account that avoids judging the contributions of earlier workers
• ○C. An explanation that includes complexity rather than a neat heroic story
• ○D. A narrative that gives equal attention to every historical disagreement

• ○A. Historical records showing that later storage improvements kept vaccine supplies usable longer
• ○B. Historical records listing the medical subjects Jenner studied before investigating cowpox
• ○C. Historical records showing how widely Jenner's first published findings were distributed
• ○D. Historical records describing the locations where variolation was practiced before Jenner