Research and Trends in COVID-19 Vaccines Using VOSviewer

The World Health Organization (WHO) classified the latest coronavirus (COVID-19) as a pandemic on March 11, 2020. As a result, the pandemic has spread to practically every country on the planet. WHO's major goals for 2021 are to fight COVID-19, strengthen current health systems, increase access to COVID-19 treatment, and provide equitable and safe vaccines for all. As the number of scientific publications continues to expand, there is an increasing need to analyze factors and characteristics that contribute to highly published documents and highly cited articles. This study evaluates and identifies trends and studies in COVID-19 vaccines using the SCOPUS database and VOSviewer. The top five active countries on COVID-19 vaccines publication are the United States with 4168 documents, China with 2245 documents, Italy with 1512 documents, the United Kingdom with 1370 documents, and Spain with 663 documents. Results of network visualizations indicate that understanding the state-of-the-art COVID-19 pandemic is essential in planning future measures to fight COVID-19 and improve vaccination uptake.