The phrase "recent rash" means a sudden outbreak or increase in something, like a series of events or actions that have happened recently. Full definition
Buffalo Police Commissioner Daniel Derenda discusses recent rash of murders and shootings from Buffalo Police Headquarters. (news.wbfo.org)
The most recent rash of attacks began on October 31, when gunmen stormed the Sayidat al - Nejat (Our Lady of Salvation) church in Baghdad; in the ensuing violence at least 50 died and 75 were wounded. (religion.blogs.cnn.com)
For those hoping that 2017 would be a blip rather than a trend, Nike's latest announcement shows that recent rash of closures could just be the start of a great retail unraveling. (businessinsider.com)