That was "down to the lowest levels since 2013, largely as a result of emergency travel restrictions" imposed by governments to slow the spread of the coronavirus across borders, it said.
The ZEW institute's monthly barometer measuring economic expectations in Europe's largest economy rose 9.4 points to a new reading of 71.2 points in January.
Russian developers are in talks with China's CanSino Biologics Inc., in an effort to test a combined regimen of their shots to better protect against new virus strains.
The Russian Direct Investment Fund, a partner in the Sputnik V vaccine program, forged a preliminary agreement with the CanSino and Petrovax Pharm, to reportedly conduct testing in Russia.