Before revision: For many years, an early and major class of RATs , the rapid strep tests for streptococci , were so often the referent when RATs or RADTs were mentioned that the 2 latter terms were often loosely treated as synonymous with those; today, more precise usage is advisable, as other major classes of RATs are just as important.
After revision: For many years— an early and major class of RATs — the rapid strep tests for streptococci , were so often the referent when RATs or RADTs were mentioned that the two latter terms were often loosely treated as synonymous with those; today, more precise usage is advisable, as other major classes of RATs are just as important.