GroupM gathered insights from 14,000 middle income consumers across 23 countries.
McCann Worldgroup leader Harris Diamond keeps team informed as COVID-19 continues to spread.
Mobile and YouTube showed the highest rates of growth.
Mark Zuckerberg attempts to put advertisers' minds at ease by stressing his platform has dramatically enhanced its brand safety measures.
'We are accepting this painful situation in the short-term, to be better prepared for the future,' says CEO and Chairman Arthur Sadoun.
"Gone are the days when the idea is to get all the data one can get their hands on."
Top news, insights and analysis every weekday
Sign up for Campaign Bulletins