2 adjectives to describe intermittent

And, again, great districts, occupying a half of a State, are so detrimental to sound health that half their population are whelmed with feversbilious, intermittent, and typhoidfrom year's end to year's end.

The throbbing flushes of the poetical intermittent have been coming over me from time to time of late.

2 adjectives to describe  intermittent