From Longman Dictionary of Contemporary Englishrash of somethingrash of somethinginformalLOT/LARGE NUMBER OR AMOUNT a large number of unpleasant events, changes etc within a short time SYN spate of something There’s been a rash of car thefts in the city centre. → rash
Examples from the Corpus
rash of something• Emergency officials worry that the region may again be hit by a rash of wildfires this fall.• Experts are not sure what is causing the recent rash of mountain lion sightings. 