Assertion: vaccine | /r/Causes | immune response
Facets:
value: in animals
type: OTHER
Source sentences:
text: A clinical trial for an experimental coronavirus vaccine has begun recruiting participants in Seattle, but researchers did not first show that the vaccine triggered an immune response in animals, as is normally required.
text: Animal trials: A lab tests the vaccine on small animals (usually mice) to see if it triggers an immune response and side effects.