Corpus downloaded from PubMed July 13th: 30116 publications. There were 1835 keywords that occurred in five or more manuscripts. These divided into five main clusters. To create the map, we used the LinLog method. The minimum cluster size was set to 25.

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

Cluster description in progress

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/