Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Seasonal flu epidemics, too, tend to be heavily dominated by flu A’s, especially H3N2 and H1N1, two notably tough-to-target strains that feature prominently in each year’s vaccine.