Moody's Investors Service on Thursday said the credit downturn arising out of COVID-19 will be short-lived but most economies will not return to pre-pandemic activity levels until 2022. In the year since the World Health Organisation (WHO) declared COVID-19 a pandemic on March 11, 2020, the virus has disrupted the global economy and triggered a credit downturn accompanied by a spike in bond defaults. "The credit challenges arising from COVID-19 have been substantial, but the credit downturn likely will be relatively short-lived. Risks remain more significant for the sectors most vulnerable to restrictions on their normal activities," Moody's said in a global report in coronavirus.