Europe's drug regulator approved J&J's vaccine last month after examining cases of a rare blood clotting issue in US adults who received a dose. But it left it up to the European Union's member states to decide how to use it.
A spokeswoman for the Robert Koch Institute (RKI) for infectious diseases said the institute expects STIKO to make a recommendation on J&J's vaccine next week. She declined to comment further.
The Robert Koch Institute (RKI) for infectious diseases predicted that the number of daily reported cases could exceed 30,000 in the 14th week of the year starting April 12.
"An extrapolation of the trends shows that case numbers can be expected above the Christmas level from week 14 onwards," the RKI said in its current situation report.
The Robert Koch Institute (RKI) disease control centre said 859 people died from the virus in the past 24 hours, bringing the total number of fatalities to 50,642.
"That is a distressing, incomprehensible number to me," RKI chief Lothar Wieler told reporters.