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/