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.
Those at the highest risk of complications from influenza are the very young, the very old, pregnant women, those with immunocompromising conditions and those with pre-existing lung or heart conditions.