As we see everyday many people are dying every day in Europe and America and their economy is going down every day and economy specialties are guessing that the USA will lose his position as economy king and china will take over and we are already seeing that china economy didn't drop much and there already making money in this crisis.
Considering how good they managed the entire Sars situation, they have big changes to use the most fortunate economic strategy, so probably China will be the richest country in the world.