Pfizer Inc. significantly raised its revenue forecasts for its COVID-19 vaccines Wednesday, as it expects to deliver an additional 500 million doses compared to previous expectations.

The American company, which jointly produced the German Biontech vaccine against Covid, expects to deliver 2.1 billion doses, generating sales of $33.5 billion.

In May, the company expected sales of $26 billion. Pfizer also raised its full-year earnings forecast.