Respuesta :
The argument that best supports the passage's claim is If too few people get the vaccine, the people who receive it may not be well protected against infection.
What is an Argument?
This refers to the use of logic to try and convince or persuade a person about a particular viewpoint.
Hence, we can note that the claim of the author was one about the use of vaccines and the effectiveness of it and it was supported by the statenement that If too few people get the vaccine, the people who receive it may not be well protected against infection.
Read more about claims here:
https://brainly.com/question/2748145