Among them, ${gamma_{Q0}}$ and $d_{Q0}$ are the cure rate and death rate of mild hospitalized patients 2 months ago, $5$ and $2020$, which are the same as the cure rate and death rate of severe hospitalized patients
Among them, the gamma_ cure rate, mortality rate of $5$, and $d $2020 for patients hospitalized with minor illnesses before February is the same as the cure rate and mortality rate for patients hospitalized with minor illnesses