FRANKFURT- Germany's CureVac expects initial results from a late-stage trial of its COVID-19 vaccine early in the second quarter because the biotech group aims to have read-outs for specific variants.

"We need a certain number of cases for each virus variant to arrive at statistically significant results," a spokesman said on Thursday.

The company, which on Thursday added Novartis to its line-up of vaccine contract manufacturers, has previously raised the prospect of initial trial results as early as this month. 

(Reporting by Ludwig Burger Editing by Riham Alkousaa) ((ludwig.burger@thomsonreuters.com; +49 30 220133634; Reuters Messaging: ludwig.burger.thomsonreuters.com@reuters.net))