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COVID-19
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Vaccine Development and Distribution
Global Supply Chain and Economic Disruptions
Government Responses and Policies
Global Outbreak and Declaration of Pandemic
Social and Behavioral Impacts
Economic Impact and Recession
Healthcare System Overload and Response
Long-Term Economic and Social Consequences
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Clinical Trials and Treatment Research
Timeline location:
COVID-19 Hub
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Clinical Trials and Treatment Research
This timeline highlights key clinical trials and research on treatments for COVID-19.
Hydroxychloroquine Clinical Trial
March 17, 2020
The University of Minnesota began testing hydroxychloroquine to see if it could prevent or reduce the severity of COVID-19 infections.
WHO Ends Hydroxychloroquine Study
June 18, 2020
The World Health Organization stopped testing hydroxychloroquine as a treatment for COVID-19 due to lack of efficacy.
NIH Halts Hydroxychloroquine Trial
June 20, 2020
The National Institutes of Health halted a clinical trial examining the safety and effectiveness of hydroxychloroquine as a treatment for COVID-19.
Other Themed Timelines
Main milestones
Economic Impact and Recession
Global Outbreak and Declaration of Pandemic
Global Supply Chain and Economic Disruptions
Government Responses and Policies
Healthcare System Overload and Response
Long-Term Economic and Social Consequences
Regional and Country-Specific Responses
Sector-Specific Economic Impacts
Social and Behavioral Impacts
Vaccine Development and Distribution
Show all