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Temporal evolution of the coronavirus literature over the last thirty years(N=43,769) is analyzed along with its subdomain of SARS-CoV-2 articles(N=27,460) and the subdomain of reviews and meta-analytic studies (N=1,027).(i) The analyses on the subset of SARS-CoV-2 literature identified studiespublished prior to 2020 that have now proven highly instrumental in thedevelopment of various clusters of publications linked to SARS-CoV-2. Inparticular, the so-called sleeping beauties of the coronavirus literature withan awakening in 2020 were identified, i.e., previously published studies ofthis literature that had remained relatively unnoticed for several years butgained sudden traction in 2020 in the wake of the SARS-CoV-2 outbreak. (ii) Thesubset of 2020 SARS-CoV-2 articles is bibliographically distant from the restof this literature published prior to 2020. Individual articles of theSARS-CoV-2 segment with a bridging role between the two bodies of articles(i.e., before and after 2020) are identifiable. (iii) Furthermore, the degreeof bibliographic coupling within the 2020 SARS-CoV-2 cluster is much poorercompared to the cluster of articles published prior to 2020. This could, inpart, be explained by the higher diversity of topics that are studied inrelation to SARS-CoV-2 compared to the literature of coronaviruses publishedprior to the SARS-CoV-2 disease. This work demonstrates how scholarly effortsundertaken during peace time or prior to a disease outbreak could suddenly playa critical role in prevention and mitigation of health disasters caused by newdiseases.

Sleeping beauties and temporal evolution of the coronavirus literature