Study | Location | Study date | Method | Estimated R0 | Other findings |
---|---|---|---|---|---|
Li et al. | Guangdong, China | May, 2021 to June, 2021 | Calculating viral loads in the oropharyngeal swabs of quarantined individuals by days between exposure and the time of RT-PCR test | Viral loads: 1260-fold higher in delta variant infected patients in comparison to those of the wild-type strain | |
Liu et al. | Review study | Mean R value of delta variant = 5.08 (between 3.2 and 8) Mean R0 of ancestral variant = 2.79 | |||
Tian et al. | Review study | R value of delta variant = 4.04–5.0 R0 of wild-type variants = 2.2–3.77 | GT of the delta variant = 2.9 GT of the wild-type variants = 5.7 |