In an article written in the Caixin, it has been reported that the biggest study yet of the Covid-19 epidemic found that almost twice as many Chinese medical workers have been infected as officially reported by the government, though the research didn’t turn up the source of the novel coronavirus.
- "A team at the Chinese Center for Disease Control and Prevention (CDC) studied 72,314 cases as of Feb. 11, among which 44,672 were confirmed cases of coronavirus. The sweeping study was published Monday by the Chinese Journal of Epidemiology."
- The researchers found that 3,019 medical workers had been infected, among whom 1,688 patients were in severe or critical condition. As of Feb. 11, the government acknowledged more than 1,700 medical workers nationwide as confirmed with the disease, almost 90% of them in Hubei, according to Chinese National Health Commission deputy chief Zeng Yixin at a press conference Friday.
- The overall death rate among confirmed cases was 2.3%, the CDC researchers found. In Hubei province, the epicenter of epidemic, the pace of fatalities was 2.9%, compared with 0.4% in the rest of the country, according to the paper. For patients more than 80 years old, the fatality rate can be as high as 14.8%, the study found.
- Among patients in critical condition, 49% died, the study found. According to the National Health Condition, patients in critical condition experience respiratory failure requiring mechanical ventilation, or shock, or other organ failures requiring intensive care. As of Feb. 11, 4.7% of infected patients across China were in critical condition, the researchers found.
- The new study said there is no evidence of “super-spreader” incidents at any hospitals. The earlier paper, produced by a team led by Zhong Nanshan, a Chinese epidemiologist who discovered the SARS coronavirus in 2003, said it could not preclude the presence of “super-spreaders,” defined as one person who transmits infection to more than 10 others. The earlier study covered about 1,000 cases from Jan. 1-29.
- Early cases suggest that the Covid-19 virus may be less damaging than the SARS and MERS coronaviruses, but as the number of cases increased rapidly, the new virus appears to be more contagious than the two others, the researchers said.
- The epidemic curve is showing signs of slowing, indicating measures such as restricting the flow of people, reducing human contact and disclosure of epidemic information at a high frequency through multiple channels may be helping to contain the outbreak, the paper said."
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