Wikipedia: 2019-20 coronavirus outbreak
The 2019–20 coronavirus pandemic is an ongoing global pandemic of coronavirus disease 2019 (COVID-19), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The outbreak was first identified in Wuhan, Hubei, China, in December 2019, and was recognised as a pandemic by the World Health Organization (WHO) on 11 March 2020.

(Oxford English Dictionary)
-gate, comb. form
Originally and chiefly U.S.
A terminal element denoting an actual or alleged scandal (and usually an attempted cover-up), in some way comparable with the Watergate scandal of 1972. Appended to:
The name of the place where such a scandal (allegedly) occurred, or that of a place in some way associated with the scandal, as Dallasgate, Hollywoodgate, Irangate, Koreagate, etc.
1973 National Lampoon Aug. 27/2 There have been persistent rumors in Russia of a vast scandal… Implicated in ‘the Volgagate’ are a group of liberal officials.
1975 Mod. People 1 Oct. 1 (heading) Shocking Dallasgate revealed.
1976 Guardian Weekly 5 Dec. 6/2 The continually expanding scandal over the Park regime’s influence peddling on Capitol Hill has already been called a ‘Koreagate’.
1978 Newsweek 23 Jan. 55/3 Rumors of a coverup spread, and journalists scurried to investigate what some were already calling Hollywoodgate.

Urban Dictionary
coronagate
Contemporary conspiracy theories behind COVID-19 origin and sponsorship
Opinion: “Coronagate presents the ultimate leadership test.”
by humblepiece April 01, 2020

YouTube
Covid Gate, The Political Virus Prof Michel Chossudovsky
Sep 7, 2020
Eaglefortonight