A research team from Guangzhou City in South China's Guangdong Province has revealed the complete transmission chain of delta mutant through a combination of epidemiological and viral genome sequencing technology.

File photo: CGTN

The team used the multi-azimuth approach to depict the transmission, viral kinetics and clinical characteristics of the emergent delta variant in outbreaks in the southern city.

The study was published in the Journal of Clinical Medicine, a subsidiary of the Lancet, on Sunday.