SARS-CoV-2 Delta variant
The advent and rapid prevalence of the Omicron strain demonstrates the potential of SARS-CoV-2 to evolve its ability to transmit and cause disease. What is particularly surprising, however, is that the origin of the Omicron strain does not appear to have originated from any of the dominant SARS-CoV-2 variants such as the Alpha, Beta, Gamma or Delta strains.
"We have been climbing the fifth wave of Covid all week and we have no reason to be optimistic. I think we will reach a peak next week - maybe by Tuesday, Wednesday we will have 15,000 infected a day, after which there will be a decline." This was said to BNR by Prof. Penka Petrova, director of the Institute of Microbiology at the Bulgarian Academy of Sciences.
She also said that it is not yet clear whether this subspecies is more contagious than the original.
Tjaa ohar Cretnik also said that the omicron subspecies BA.2 was discovered in Podravje, adding that, according to unconfirmed data, there is a possibility that two more BA.2 cases were discovered at the Institute of Microbiology and Immunology in Ljubljana.