What's the plural form of reimmunization? Here's the word you're looking for.
Answer
The noun reimmunization can be countable or uncountable.
In more general, commonly used, contexts, the plural form will also be reimmunization.
However, in more specific contexts, the plural form can also be reimmunizations e.g. in reference to various types of reimmunizations
or a collection of reimmunizations.