Answer:
The argument is strong because the claim is supported by logical evidence and a counterclaim is considered.
Step-by-step explanation:
The argument is strong because it gives the evidence that vaccines were used in history to 1) treat small pox in the US, and 2) treat diseases around the world. It also provides the counterclaim that 1) opponents argue... vaccines can contain harmful ingredients..., and counterclaims that there are no... link(s) between vaccines and harmful outcomes due to their ingredients...
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