Before revision:  Finally we study the behavior of the ratio infected over swabs , and we show as studying this parameter we recover the generalized Logistic model used in [1]  . We think that this trend could be useful for a future epidemic of this coronavirus.
After revision:  Finally we study the behavior of the ratio infected over swabs , and we show as studying this parameter we recover the generalized Logistic model used in [1] for these three countries . We think that this trend could be useful for a future epidemic of this coronavirus.