"We have been working with an analogue of the coronavirus, which was isolated back in the 1960s and from studying the reactions of this less pathogenic virus we can predict how antiviral substances would act on the current virus." This was what Assoc. Prof. Penka Petrova, Director of the Institute of Microbiology at the Bulgarian Academy of Sciences told Nova TV.

The academy has nearly 70 synthesized substances being tested for the first time against coronavirus, and 22 of them are "particularly promising." "The virus dies exposed to ultraviolet light," said Assoc. Prof. Penka Petrova, adding that the Bulgarian Academy of Sciences has been developing a method based on electric charring to be used in protective masks.