"The global economy will contract by 3% this year as countries around the world shrink at the fastest pace in decades, the International Monetary Fund says. The IMF described the global decline as the worst since the Great Depression of the 1930s. It said the pandemic had plunged the world into a "crisis like no other" (BBC News 14 April 2020)."

(a)With reference to the news above and with the help of an aggregate demand-supply diagram, briefly explain how the Coronavirus pandemic may reduce equilibrium global output in the short run.