Paola De Simone, 46, reportedly died during a virtual Zoom lecture for the Universidad Argentina de la Empresa in Buenos Aires.
Her Majesty has shown up virtually in video calls and pictures. But the pandemic is still keeping her away from in-person events.
Blast killed at least 160 people and wounded about 6,000.
Autocratic leaders have obscured coronavirus data, cracked down on doctors and reporters, and used the health crisis to further erode democracies worldwide.
The Beirut explosions ripped through a fragile society already struggling with a financial crisis and the coronavirus pandemic.
Highly explosive material caused at least one of the blasts in the port of Lebanon's capital city, an official said.
As governments focus on reopening their economies, scientists warn that they need to step up preparations for a second wave.
Chief Commissioner of Victoria Police Shane Patton called the breach of the stay-at-home order "ridiculous," adding, "that birthday party is costing them."
Park Won-soon's daughter had previously reported him missing.
They may have been spared the high mortality rates of older generations, but COVID-19 threatens to permanently scar the career prospects of young people.