Related Experiment Video
Updated: Dec 5, 2025
Author Spotlight: Advancements in Multiplex Detection of Respiratory Viruses
Published on: November 10, 2023
Wuhan's experience in curbing the spread of coronavirus disease (COVID-19)
Wei-Ying Li1, Yong Dai2, Pui-Hing Chau1
1School of Nursing, The University of Hong Kong, 4/F, William M.W. Mong Block, 21 Sassoon Road, Hong Kong.
Insights
Early public awareness and timely interventions significantly reduced COVID-19 spread in Wuhan. This study highlights the importance of rapid identification and quarantine for controlling coronavirus disease (COVID-19) outbreaks.
Area of Science:
- Epidemiology
- Public Health
- Infectious Disease Dynamics
Background:
- Coronavirus disease (COVID-19) has impacted over 50,000 individuals in Wuhan, China, since December 2019.
- Key epidemiological metrics like daily infection rates, hospitalization rates, and diagnosis lag times require further exploration in relation to control measures.
Purpose of the Study:
- To analyze hospitalization rates and lag times from symptom onset to diagnosis in COVID-19 patients.
- To estimate daily infection trends using a back-projection method.
- To investigate the association between government interventions and the decline in COVID-19 infections.
Main Methods:
- Retrospective analysis of 6872 COVID-19 patients in Wuchang district, Wuhan, with onset dates from December 21, 2019, to February 23, 2020.
- Calculation of overall and weekly hospitalization rates and mean lag time from onset to diagnosis.
- Estimation of daily infections via back-projection and narrative analysis of government measures' impact.
Main Results:
- The overall hospitalization rate for COVID-19 was 45.9% (95% CI 44.7–47.1%).
- The average time from symptom onset to diagnosis was 11.1 ± 7.4 days.
- Increased public awareness, social distancing, prompt testing, and inpatient services coincided with a decrease in daily infections.
Conclusions:
- Early public awareness, prompt case identification, and rapid quarantine are crucial for controlling community spread of COVID-19.
- Effective containment strategies require robust infrastructure to support public health interventions.
Background:
Since December 2019, coronavirus disease (COVID-19) has affected over 50 000 people in Wuhan, China. However, the number of daily infection cases, hospitalization rate, lag time from onset to diagnosis date and their associations with measures introduced to slow down the spread of COVID-19 have not been fully explored.
Methods:
This study recruited 6872 COVID-19 patients in the Wuchang district, Wuhan. All of the patients had an onset date from 21 December 2019 to 23 February 2020. The overall and weekly hospitalization rate and lag time from onset to diagnosis date were calculated. The number of daily infections was estimated by the back-projection method based on the number of daily onset cases. Their association with major government reactions and measures was analyzed narratively.
Results:
The overall hospitalization rate was 45.9% (95% CI 44.7 to 47.1%) and the mean lag time from onset to diagnosis was 11.1±7.4 d. The estimated infection curve was constructed for the period from 14 December 2019 to 23 February 2020. Raising public awareness regarding self-protecting and social distancing, as well as the provision of timely testing and inpatient services, were coincident with the decline in the daily number of infections.
Conclusion:
Early public awareness, early identification and early quarantine, supported by appropriate infrastructure, are important elements for containing the spread of COVID-19 in the community.
More Related Videos
Related Concept Videos
01:18Steps in Outbreak Investigation
01:13Controls in Experiments
01:26Standard Precaution
Hand hygiene is the most crucial means to prevent the transmission of disease. Employers are legally required to provide their workers with personal protective equipment (PPE) to minimize exposure or contact with...
01:25Transmission-based Precautions II: Airborne and Protective Environment
Airborne precautions:
Use airborne precautions when treating patients known or suspected to have diseases that spread through the air—for example, tuberculosis or measles. These organisms are present in smaller droplets expelled by an infected person and...
01:22Healthcare Associated Infections II: Preventive Measures
The best practices for preventing healthcare-associated infections include hand hygiene, patient risk...
01:17Transmission-based Precautions I: Contact, Enteric, and Droplets
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...