In this post, we present the current focus of the COVID-19 literature, based on publications registered in PubMed as published from  August 2nd to September 5th.

The analysis is based on 10720 publications, which gave 1288 keywords that appear in 5 or more manuscripts, that divide into 5 clusters.

To open the map directly in VOSviewer, please use the Keyword co-occurrence MAP and NET files from September, available through the Open Science Foundation (OSF) repository:

In the table below, we have listed the 20 most central keywords in each cluster.

Cluster 1 Cluster 2 Cluster 3 Cluster 4 Cluster 5
adolescent risk factor animals covid-19 testing covid-19 vaccines
children aged, 80 and over antibodies, viral rna, viral vaccination
mental health infant spike glycoprotein, coronavirus viruses vaccine
public health severity of illness index ace2 covid-19 nucleic acid testing immunogenicity, vaccine
anxiety inflammation antibodies, neutralizing nasopharynx vaccine hesitancy
communicable disease control hospitalization antiviral agents real time polymerase chain reaction safety
depression pregnancy chlorocebus aethiops algorithms influenza, human
health personnel time factors immunoglobulin g machine learning healthcare workers
stress mortality mice respiratory infections vaccines, synthetic
telemedicine prevalence vero cells zoonosis influenza vaccines
epidemiology treatment outcome cytokines diagnosis immunocompromised host
disease outbreaks comorbidity virus replication deep learning vaccines, inactivated
quarantine intensive care units lung specimen handling immunization
students prognosis mutation saliva adaptive immunity
lockdown age factors protein binding polymerase chain reaction patient safety
exercise biomarkers antibody mass screening myocarditis
quality of life risk assessment viral load transmission practice guidelines as topic
health policy hospital mortality molecular docking simulation laboratory immunity, herd
infectious diseases infection spike protein artificial intelligence mass vaccination
infection control ct antibodies, monoclonal air pollution influenza