Table 2 Top 20 countries according to three publication indicators

From: The swift knowledge development path of COVID-19 research: the first 150 days

  Quantity Quality   
Rank Country No. of papers Country No. of citations Country m-index
1 China 995 China 11,551 China 0.9862
2 U.S. 848 U.S. 2,350 U.S. 0.5141
3 Italy 440 England* 816 Italy 0.2152
4 England* 356 Germany 668 England* 0.1585
5 Canada 127 Italy 563 Singapore 0.1194
6 India 121 Singapore 361 Canada 0.1173
7 France 117 Canada 293 Germany 0.0902
8 Australia 113 France 197 Taiwan 0.0815
9 Singapore 100 Switzerland 185 India 0.0735
10 Germany 91 South Korea 171 France 0.0653
11 Iran 89 Japan 156 Iran 0.0550
12 Switzerland 81 Taiwan 136 Vietnam 0.0539
13 Turkey 60 Australia 132 Australia 0.0477
14 South Korea 54 Scotland 98 Brazil 0.0465
15 Brazil 51 India 95 Netherlands 0.0447
16 Japan 49 Netherlands 91 Switzerland 0.0404
17 Spain 46 Sweden 91 Turkey 0.0403
18 Netherlands 37 Belgium 77 Japan 0.0382
19 Thailand 33 Vietnam 75 Norway 0.0307
20 Taiwan 32 Thailand 63 Spain 0.0273
  1. *We do not combine all the regions in the United Kingdom of Great Britain and Northern Ireland (England, Scotland, and Wales), because we follow the address information offered by WOS