Individuals with fifth disease are most infectious before the onset of symptoms.

These four kinds of infectious agents cause most infectious disease.

It must be the most infectious maritime ballad in recent memory.

Rhinoviruses are most infectious in the first three days of cold symptoms.

It seems that the work is most infectious for those of us in Locard who actually get to meet the families.

It was most infectious, and I too fell to laughing.

Prions appear to be most infectious when in direct contact with affected tissues.

The StarPhoenix listed it as the second most infectious song of the year.

S. japonicum being the most infectious of the three species.

He created one of the most infectious "buzzes" I've experienced in a comedy venue for some time.