• Researchers studied tweets related to the retraction of 3 COVID-19 publications to see if the tweets indicated any form of warning through a qualitative approach to answer the research questions: Do Twitter users mention problems with papers (early) that are later retracted? Are Twitter users who mention retracted publications informed about the paper status? Do they explicitly mention the issues why the publication has been retracted?

Chosen retracted publications

• Bae, S., Kim, M. C., Kim, J. Y., Cha, H. H., Lim, J. S., Jung, J., ... & Kim, S. H. (2020). Effectiveness of surgical and cotton masks in blocking SARS–CoV-2: a controlled comparison in 4 patients. Annals of internal medicine, 173(1), W22-W23.
• Mehra, M. R., Desai, S. S., Ruschitzka, F., & Patel, A. N. (2020). RETRACTED: Hydroxychloroquine or chloroquine with or without a macrolide for treatment of COVID-19: a multinational registry analysis.
• Wang, X., Xu, W., Hu, G., Xia, S., Sun, Z., Liu, Z., ... & Lu, L. (2020). SARS-CoV-2 infects T lymphocytes through its spike protein-mediated membrane fusion. Cellular and Molecular Immunology, 1.