Corpus downloaded from PubMed July 27th: 33970 publications. There were 2111 keywords that occurred in five or more manuscripts. These divided into five main clusters. To create the map, we used the LinLog method.

Table of the most central keywords in each cluster

(Centrality measure used is weighted degree centrality/total link strength)

Cluster 1 Cluster 2 Cluster 3 Cluster 4 Cluster 5
pneumonia epidemiology pandemic sars male
hydroxychloroquine telemedicine coronavirus infection animals female
mortality personal protective equipment viral pneumonia antiviral agents adult
infection outbreak betacoronavirus zoonosis middle aged
ace2 mental health china viruses aged
inflammation infectious diseases disease outbreaks peptidyl-dipeptidase a clinical laboratory techniques
chloroquine anxiety public health mers children
acute respiratory distress syndrome depression infection control spike glycoprotein, coronavirus young adult
cytokines social distancing quarantine genome, viral adolescent
treatment prevention epidemic antibodies, viral tomography, x-ray computed
cardiovascular diseases transmission united states viral vaccines risk factor
critical illness masks travel vaccine retrospective studies
diagnosis triage global health respiratory infections lung
hypertension healthcare workers italy clinical trials as topic aged, 80 and over
cytokine storm cancer health personnel phylogeny infant
diabetes mellitus safety intensive care units chiroptera fever
ards surgery practice guidelines as topic wuhan child, preschool
lopinavir stress critical care receptors, virus comorbidity
angiotensin-converting enzyme inhibitors virology time factors immunization, passive cough
remdesivir guidelines health policy antibodies, monoclonal pregnancy
obesity disease risk assessment drug repositioning hospitalization
ritonavir knowledge world health organization alanine severity of illness index
tocilizumab lockdown contact tracing adenosine monophosphate real time polymerase chain reaction
computed tomography education united kingdom communicable diseases, emerging surveys and questionnaires
novel coronavirus pneumonia patient care infectious disease transmission, patient-to-professional models, molecular prognosis

To open the map directly in VOSviewer, please use these the latest MAP and NET files, available through the Open Science Foundation (OSF) repository:
https://osf.io/54gqw/