Well the Iranian regime isn’t exactly displaying too much competence in dealing with the COVID-19 outbreak in their country...I would’t make too much of the “quicklime”/corpse mention...
From the Calcium Oxide Wiki:
“Disposal of corpses: historically, it was believed that quicklime was efficacious in accelerating the decomposition of corpses. This was quite mistaken, and the application of quicklime can even promote preservation; although it can help eradicate the stench of decomposition, which may have led people to suppose it was the actual flesh which had been consumed.”
All “virii”?/viruses in the past have had “hard surface” viability times in the 3-14 day range with Norovirus (gastrointestinal/cruise ships) beinging the longest at 14 days.