### Chinese: 据南非国家传染病研究所总结：在近几周住院的新冠患者中，只有30%是严重病症，是前一波疫情重症比例的一半；平均住院时间从8天缩短到2.8天；近期的新冠患者中，仅有3%死亡，而在南非早期爆发的病例中，死亡比例达20 % 。
### English: According to the conclusion of the <v>National Institute of infectious diseases in South Africa</v>: in recent weeks, only 30% of the patients with covid-19 were serious diseases, half of the proportion of severe cases in the previous wave of the epidemic; The average length of stay was shortened from 8 days to 2.8 days; Only 3% of the recent covid-19 patients died, while 20% of the early outbreaks in South Africa.
### Errors: There is a major terminology/inappropriate for context error at "National Institute of infectious diseases in South Africa" within <v></v>.

### Improved English: According to the summary made by National Institute of Infectious Diseases of South Africa, among the patients of COVID-19 who were hospitalized within the last few weeks, only 30% of them were severe cases, which accounts for a half of the proportion of severe cases of the last round of epidemic; the average stay at hospital is reduced from 8 days to 2.8 days; only 3% of the latest patients of COVID-19 died, which used to be as high as 20% in the cases of the early epidemic phase in South Africa.
