Abstract
BackgroundChina’s vigorous anti-COVID-19 campaign has been going on for three months since January 20, which has contained the spread of the virus across China.ObjectivesEpidemiological investigations found that COVID-19 fatality rates in Wuhan, rest parts of Hubei province except Wuhan (Rest of Hubei) and rest parts of Mainland China except Hubei province (Rest of China) were different. An ecological study was conducted to analyze the reasons and provide the world with China’s anti-COVID-19 epidemic experiences.MethodsInfected cases from Mainland China were divided into three populations: Wuhan, Rest of Hubei and Rest of China. Methods were based on The Novel Coronavirus Infected Pneumonia Diagnosis and Treatment Standards. Total confirmed cases, daily severe cases, total deaths from February 12 to April 20 were collected for statistical analysis.Results50,333 total confirmed cases in Wuhan made up the most substantial part by comparison with 17,795 in Rest of Hubei and 14,630 in Rest of China, respectively. In the early stage of the COVID-19 epidemic, daily severe cases in Wuhan accounted for the majority, and as the epidemic controlled, severe cases in all three populations decreased. Total deaths in Wuhan constituted the most significant proportion, with the highest 3869 in contrast to 643 in Rest of Hubei and 120 in Rest of China. The fatality rates in Wuhan ranged from 2.82% to 7.69%, much higher than 1.80–3.61% in Rest of Hubei, and 0.49–0.88% in Rest of China. Pearson chi-square test for fatality rates in the three populations demonstrated significant differences (p < 0.01).ConclusionThe ecological comparison study among the three populations have proved that social distancing, quarantine, lockdown, cutting off sources of infection and transmission routes, early detection, early isolation, early treatment are all vital to control the epidemic by reducing COVID-19 confirmed cases, severe cases and the fatality rate.
Highlights
China’s vigorous anti-COVID-19 campaign has adopted ancient methods for prevention and control of infectious diseases [1] and has been going on for 3 months since January 20
In the early stage of the COVID-19 epidemic, daily severe cases in Wuhan accounted for the majority, and as the epidemic controlled, severe cases in all three populations decreased (Figure 3)
China’s anti-COVID-19 epidemic experiences have been proved to be vital to control the epidemic by reducing COVID-19 confirmed cases, severe cases and the fatality rate [13,14,15]
Summary
China’s vigorous anti-COVID-19 campaign has adopted ancient methods for prevention and control of infectious diseases [1] and has been going on for 3 months since January 20. Despite the concealment and delay at the beginning [2], it seems that the epidemic situation in China has been controlled, but it has evolved into a pandemic, which has been breaking out in more than 200 countries. China provided the world with a month of preparation time and a wealth of experience in fighting the COVID-19 epidemic. China’s vigorous anti-COVID-19 campaign has been going on for three months since January 20, which has contained the spread of the virus across China
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