The diagnosis was confirmed in two patients previously infected with the disease, one of whom had returned from South Africa, the report added.
Acting Health Director Peter Aitken explained that the genetic lineage of this variant is about 50 percent different from Omicron and more difficult to identify with a PCR.
The World Health Organization (WHO) said that the new coronavirus variant identified in South Africa in November was a cause for concern because of the large number of mutations that point to a higher risk of reinfection compared to other strains.
According to the genome-sharing website GitHub, this strain has 32 protein S mutations, 10 in the RBD (fragment used by Cuban vaccines), and is considered the first to have nine separately identified changes in Alpha, Beta, Gamma and Delta.
There are also N501Y, E484A, P861H and K417N changes and others detected only in the new variant.
Experts think that the new strain might displace the predominance of Delta as the main cause of the outbreaks in the world, as well as the immunity induced by infection or vaccines.