The federal prosecutor's office identified the pair only as Fadia S. and Rabih O, in line with German privacy rules.
The economic meltdown presents a serious challenge for Assad, who survived more than nine years of war but rules over a crumbling infrastructure and ravaged economy.
The Britain-based Syrian Observatory for Human Rights recorded 15 airstrikes on Tuesday, also saying they were believed to be Russian.
The Syrian Observatory for Human Rights said that the death toll could climb as some of the wounded were in critical condition.
The country's official numbers are low with two deaths and 19 confirmed cases, but only 100 patients are being tested daily, with half of the testing carried out in the capital Damascus.
Of the total deaths, some 51 people were killed in shelling and airstrikes by the Syrian regime, the Britain-based Syrian Observatory for Human Rights said.
The arrival of the global pandemic in Syria as well as the Gaza Strip has raised concerns it could run rampant in some of the most vulnerable areas in the Middle East.
Rockets were fired at a military base north of Baghdad hosting coalition troops, killing two Americans and one Briton.
The two presidents were meeting after a surge in fighting in Syria raised fears of their armies clashing and launched a new migrant crisis.
The deaths, which came in an attack late Thursday, were a serious escalation in the direct conflict between Turkish and Russia-backed Syrian forces that has been waged since early February.
Rebels control much of Idlib province and parts of the neighbouring Aleppo region that is home to some 3 million people — many of them displaced from other parts of Syria.
Eight of those killed Sunday died in a regime barrel bomb attack in the town of Sarmeen, seven from the same family.
Stating that the Chief Minister has launched many welfare programmes for the poor people, Abbas said possible trade activities between Odisha and Syria were also discussed at the meeting.
While four children were among the deceased, sixteen people were wounded including some in a critical condition.
After the civil war erupted in Syria eight years ago, Nasrallah started growing the fungi in his home province of Hama.