The MotoGP races in Germany, the Netherlands and Finland in June and July have been cancelled, the International Motorcycling Federation (FIM) and promoter Dorna Sports announced on Wednesday.
"The ongoing coronavirus outbreak has obliged the cancellation of all three events," they said in a joint statement.
The German Grand Prix was scheduled from June 19-21 at the Sachsenring and the Dutch MotoGP from June 26-28 at Assen, the only circuit to have hosted a motorcycle grand prix every year since the championship began in 1949.
The Finnish race was scheduled to be held for the first time at the brand new KymiRing from July 10-12.
All three countries have prohibited large gatherings to combat the spread of coronavirus.
"It is with great sadness that we announce the cancellation of these three important Grands Prix," Dorna's CEO Carmelo Ezpeleta said in a statement.
"We very much look forward to returning to the Sachsenring and the TT Circuit Assen in 2021, and eagerly await the Grand Prix debut of the new KymiRing next season."