Before revision:  These\langle \rangle\lesssim \langle \rangle results suggest that the early containment of the disease within China was close to optimal and could not have been significantly improved upon .
After revision:  These\langle \rangle\lesssim \langle \rangle results suggest that the early containment of the disease within China was close to optimal . We further performed a comparative case study of data from three other countries, India, Brazil and South Africa .