Science Explorer Interactive view Map

Top Countries in Infectious Diseases Research

United States ranks first in 2022–2025, out of 72 ranked countries.

Composite score: field-normalised excellence, output and total citations weighted 50 / 30 / 20, each as a percentile so no single heavy-tailed measure dominates. Floor: 100 fractional works in this field.

Ranked by research quality, 2022–2025

#CountryScoreTop-10% rateWorksCitationsAll time
1United States 100.0 19.3% 29k 277k#1
2China 83.8 22.8% 16k 157k#3
3United Kingdom 74.3 24.0% 5.6k 74k#2
4India 67.6 8.7% 11k 44k#11
5Germany 62.4 20.6% 3.7k 36k#5
6Italy 58.1 20.6% 4.2k 40k#7
7France 54.5 19.3% 3.5k 31k#4
8Canada 51.4 21.2% 3k 31k#6
9Australia 48.6 22.7% 2.5k 26k#8
10Spain 46.2 16.3% 3.5k 25k#12
11South Africa 43.9 20.9% 1.8k 19k#14
12Brazil 41.9 9.7% 5.8k 25k#15
13Netherlands 40.0 27.2% 1.4k 18k#9
14Switzerland 38.3 23.9% 1.2k 15k#10
15Japan 36.7 11.9% 4.2k 28k#13
16Iran 35.2 12.0% 3.1k 19k#22
17South Korea 33.8 16.3% 2.4k 19k#19
18Belgium 32.4 22.7% 853 9.3k#16
19Hong Kong 31.2 34.1% 491 9.8k#20
20Sweden 30.0 26.5% 714 8.4k#17
21Denmark 28.8 24.5% 682 8k#18
22?? 27.7 16.7% 1k 8.5k#24
23Israel 26.7 19.9% 697 8.6k#21
24Singapore 25.7 24.4% 558 6.4k#23
25Poland 24.7 16.6% 1.1k 8.4k#32
26Nigeria 23.8 8.9% 1.6k 5.1k#43
27Taiwan 22.9 16.5% 1.2k 9.4k#27
28Saudi Arabia 22.1 14.3% 1.4k 8.7k#25
29Egypt 21.3 12.5% 1.6k 8.6k#37
30Türkiye 20.5 6.2% 2.9k 9k#35
31Pakistan 19.7 7.5% 1.8k 6.3k#33
32Greece 19.0 17.1% 687 5.7k#38
33Austria 18.2 22.6% 512 5.4k#31
34Ethiopia 17.5 18.8% 1.1k 6.8k#47
35Romania 16.9 18.4% 562 4.1k#53
36Malaysia 16.2 12.3% 846 4.6k#34
37Bangladesh 15.6 14.4% 837 5.4k#49
38Indonesia 14.9 4.1% 2.6k 5.1k#51
39Portugal 14.3 14.3% 795 4.8k#41
40Thailand 13.7 15.0% 1.1k 7.3k#26
41Uganda 13.2 19.5% 654 4.1k#30
42Russia 12.6 5.2% 2.6k 8k#40
43Mexico 12.1 9.5% 1.3k 6.1k#39
44Ireland 11.5 19.7% 399 3.6k#28
45Norway 11.0 24.7% 350 4.2k#36
46Ghana 10.5 19.7% 414 2.6k#55
47Colombia 10.0 9.2% 734 3.1k#50
48Kenya 9.5 15.6% 516 2.9k#42
49Czechia 9.0 13.7% 441 2.7k#45
50Finland 8.5 23.1% 283 3k#29
51Qatar 8.1 16.2% 254 3.3k#59
52Tanzania 7.6 17.7% 351 1.8k#44
53Argentina 7.2 10.5% 620 2.9k#52
54New Zealand 6.7 19.2% 256 2.5k#46
55Vietnam 6.3 10.7% 420 1.9k#48
56Chile 5.9 13.7% 356 2.3k#60
57Hungary 5.5 14.6% 323 2.2k#54
58United Arab Emirates 5.1 14.1% 320 2.2k#61
59Iraq 4.7 2.9% 1.2k 2.3k#70
60Jordan 4.3 15.7% 232 1.6k#63
61Peru 3.9 8.9% 394 1.5k#57
62Serbia 3.5 10.6% 251 1.2k#72
63Philippines 3.1 8.2% 318 1.1k#69
64Croatia 2.8 12.5% 226 1.2k#71
65Morocco 2.4 5.5% 499 1.1k#67
66Ukraine 2.0 3.9% 512 1.1k#79
67Cameroon 1.7 11.8% 279 1.2k#64
68Ecuador 133.7 7.0% 354 967#80
69Nepal 99.5 5.7% 389 1.1k#56
70Sri Lanka 65.9 7.3% 204 820#76
71Bulgaria 32.7 7.3% 257 937#83
72Tunisia 0.0 4.6% 402 950#73

countries ranked worldwide in Infectious Diseases (72). rank on the composite score within the stated pool. The score track runs 0 to 100; the rate track carries no world mark, because the world rate differs by field.

How spread out this pool is

Every row above on one axis — one tick each, right is a higher score. A field where the top few are far clear of everyone and one that runs down evenly look identical as a table.

0 – 5: 14 places5 – 10: 12 places10 – 15: 9 places15 – 20: 7 places20 – 25: 6 places25 – 30: 5 places30 – 35: 3 places35 – 40: 3 places40 – 45: 3 places45 – 50: 2 places50 – 55: 2 places55 – 60: 1 places60 – 65: 1 places65 – 70: 1 places70 – 75: 1 places75 – 80: 0 places80 – 85: 1 places85 – 90: 0 places90 – 95: 0 places95 – 100: 1 places0100

One bar per band of score, counting the rows on this page.

Ranked by volume, 2022–2025

  1. 1 United States 29k works
  2. 2 China 16k works
  3. 3 India 11k works
  4. 4 Brazil 5.8k works
  5. 5 United Kingdom 5.6k works
  6. 6 Italy 4.2k works
  7. 7 Japan 4.2k works
  8. 8 Germany 3.7k works
  9. 9 Spain 3.5k works
  10. 10 France 3.5k works
  11. 11 Iran 3.1k works
  12. 12 Canada 3k works