Scientific efforts on SARS-CoV-2 research: A global survey analysis

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreak has been a global pandemic. Researchers have made great efforts to investigate SARS-CoV-2. However, there are few studies analyzing the general situation of SARS-CoV-2 research at global level. This study aimed to characterize global scientific efforts based on SARS-CoV-2 publications.

SARS-CoV-2 -related publications were retrieved using Web of Science. The number of publications, citation, country, journal, study topic, total confirmed cases, and total deaths were analyzed.

A total of 441 publications were identified. China contributed the largest number of publications (198, 44.90%), followed by USA (51, 11.56%), Italy (28, 6.35%), Germany (19, 4.31%), and South Korea (13, 2.95%). Upper-middle-income economies (51.70%) produced the most SARS-CoV-2 publications, followed by high-income (45.12%), lower-middle-income (2.95%), and low-income economies (0.23%). The research output had a significant correlations with total confirmed cases (r = 0.666, p = 0.000) and total deaths (r = 0.610, p = 0.000). China had the highest total citations (1947), followed by USA (204), and Germany (54). China also had the highest average citations (9.83), followed by Netherlands (5.80), and Canada (5.43). The most popular journals were Journal of Medical Virology, Eurosurveillance, and Emerging Microbes and Infections. The most discussed topic was the epidemiology of SARS-CoV-2.

Scientific research on SARS-CoV-2 is from worldwide researchers' efforts, with some countries and journals having special contributions. The countries with more total confirmed cases and total deaths tend to have more research output in the field of SARS-CoV-2. China was the most prolific country, and had the highest quality of publications on SARS-CoV-2.