G7 leaders will also discuss how to improve access for evacuees to Kabul airport, Maas told reporters in Berlin, adding Germany has been looking at options for keeping the airport running beyond Aug 31 for days.
Downing Street said Johnson "outlined his intention to host a virtual meeting... in the coming days", during a call to French President Emmanuel Macron when he stressed the need for a "unified approach" to the situation.
The coronavirus first emerged in central China in late 2019, and the World Health Organization sent a team of international experts in January to probe its origins.