1 (b), the numbers of daily confirmed cases in countries of the first category first show a decreasing trend, reach the lowest valley, fluctuate continuously up to the peak, and then are rapidly controlled, but later the numbers of confirmed cases show a rapidly increasing trend again, such as in Yemen, which has the weakest economic base in Asia.
← all excerpts
Exploring COVID-19 transmission patterns and key factors during epidemics caused by three major strains in Asia.
1
—
—