
The new Covid-19 subvariants Kraken and Orthrus are considered highly transmissible and the Public Health Ministry is urging people with underlying conditions and the elderly to get vaccinated.
Dr Yong Poovorawan, head of the Centre of Excellence in Clinical Virology at Chulalongkorn University, posted on his Facebook page on Wednesday that the two subvariants are adept at circumventing the body's immune system.