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Updated: Dec 21, 2025

Ookluc: A Plasmodium berghei Line for Identifying Transmission-blocking Compounds
Published on: July 11, 2025
[Chloroquine as a possible treatment for COVID-19]
Jeroen Coumou1,2, Peter J de Vries1
1Tergooi Ziekenhuis, afd. Interne Geneeskunde, Hilversum.
Abstract:
Since the outbreak of COVID-19, chloroquine has been mentioned as a possible treatment. In vitro studies have shown anti-viral activity of chloroquine against SARS-CoV-2. Recently, the Dutch National Institute for Public Health and the Environment published treatment options for antiviral treatment for COVID-19 where chloroquine was suggested as first choice for off-label treatment, beside remdesivir en lopinavir/ritonavir. In this commentary, we provide a background and history of chloroquine, the evidence for antiviral efficacy of chloroquine and the arguments for off-label use of chloroquine in COVID-19.
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