Subfield · Epidemiology
Top Countries in Epidemiology Research
United States ranks first in 2022–2025, out of 79 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
| # | Country | Score | Top-10% rate | Works | Citations | All time |
|---|---|---|---|---|---|---|
| 1 | United States | 100.0 | 15.4% | 70k | 430k | #1 |
| 2 | China | 84.1 | 23.5% | 43k | 350k | #3 |
| 3 | United Kingdom | 74.9 | 18.5% | 13k | 92k | #2 |
| 4 | Italy | 68.3 | 22.0% | 8.4k | 64k | #7 |
| 5 | Germany | 63.2 | 16.9% | 9k | 57k | #4 |
| 6 | France | 59.0 | 16.6% | 7k | 49k | #5 |
| 7 | Canada | 55.5 | 19.2% | 7.2k | 52k | #6 |
| 8 | India | 52.4 | 7.8% | 17k | 49k | #14 |
| 9 | Australia | 49.7 | 20.3% | 6.5k | 47k | #8 |
| 10 | Spain | 47.3 | 14.7% | 7.2k | 40k | #11 |
| 11 | Netherlands | 45.1 | 24.0% | 3.5k | 30k | #9 |
| 12 | Japan | 43.1 | 10.1% | 10k | 43k | #10 |
| 13 | South Korea | 41.3 | 16.5% | 5.9k | 37k | #17 |
| 14 | Switzerland | 39.6 | 20.0% | 2.5k | 20k | #12 |
| 15 | Denmark | 38.0 | 21.0% | 2k | 15k | #16 |
| 16 | Brazil | 36.5 | 7.6% | 8.6k | 26k | #18 |
| 17 | Sweden | 35.2 | 22.8% | 1.9k | 17k | #13 |
| 18 | Iran | 33.9 | 13.2% | 4.2k | 20k | #30 |
| 19 | Poland | 32.6 | 15.3% | 2.5k | 14k | #27 |
| 20 | ?? | 31.4 | 16.3% | 2k | 13k | #22 |
| 21 | Belgium | 30.3 | 20.2% | 1.7k | 13k | #15 |
| 22 | Greece | 29.3 | 19.5% | 1.5k | 10k | #28 |
| 23 | Singapore | 28.2 | 20.6% | 1k | 9.5k | #29 |
| 24 | Taiwan | 27.3 | 16.4% | 2.7k | 17k | #24 |
| 25 | South Africa | 26.3 | 17.2% | 1.5k | 10k | #20 |
| 26 | Austria | 25.4 | 18.6% | 1.1k | 8.7k | #19 |
| 27 | Türkiye | 24.6 | 6.5% | 6k | 15k | #34 |
| 28 | Saudi Arabia | 23.7 | 14.1% | 2.3k | 11k | #37 |
| 29 | Russia | 22.9 | 3.4% | 7.6k | 13k | #32 |
| 30 | Egypt | 22.2 | 7.6% | 3.5k | 10k | #40 |
| 31 | Hong Kong | 21.4 | 26.3% | 781 | 7.9k | #26 |
| 32 | Portugal | 20.7 | 12.2% | 1.7k | 8k | #35 |
| 33 | Israel | 20.0 | 14.8% | 1.5k | 8.9k | #23 |
| 34 | Romania | 19.3 | 18.7% | 1.2k | 6.4k | #46 |
| 35 | Pakistan | 18.6 | 5.1% | 3.3k | 6.9k | #39 |
| 36 | Norway | 18.0 | 22.2% | 981 | 7.2k | #25 |
| 37 | Bangladesh | 17.4 | 9.6% | 1.3k | 4.4k | #48 |
| 38 | Ethiopia | 16.7 | 19.4% | 1.2k | 7.7k | #50 |
| 39 | Finland | 16.2 | 21.6% | 770 | 6.3k | #21 |
| 40 | Mexico | 15.6 | 8.3% | 2.3k | 7.5k | #36 |
| 41 | Ireland | 15.0 | 13.9% | 1.1k | 5.1k | #31 |
| 42 | Nigeria | 14.5 | 5.6% | 2k | 4.9k | #49 |
| 43 | Thailand | 13.9 | 12.9% | 1.6k | 7.5k | #38 |
| 44 | Indonesia | 13.4 | 3.0% | 4.1k | 5.7k | #47 |
| 45 | Chile | 12.9 | 12.4% | 741 | 3.5k | #44 |
| 46 | Malaysia | 12.4 | 9.8% | 1.2k | 4.9k | #41 |
| 47 | Argentina | 11.9 | 9.1% | 1k | 3.7k | #43 |
| 48 | New Zealand | 11.4 | 15.9% | 679 | 4.2k | #33 |
| 49 | Colombia | 10.9 | 7.1% | 1.3k | 3.7k | #51 |
| 50 | Czechia | 10.5 | 12.6% | 824 | 3.8k | #42 |
| 51 | Hungary | 10.0 | 13.0% | 618 | 2.9k | #45 |
| 52 | Ukraine | 9.6 | 3.1% | 1.8k | 2k | #59 |
| 53 | Uganda | 9.1 | 15.4% | 465 | 2.5k | #54 |
| 54 | Vietnam | 8.7 | 7.5% | 779 | 2.2k | #52 |
| 55 | Iraq | 8.3 | 3.6% | 1.7k | 2.5k | #71 |
| 56 | Ghana | 7.9 | 15.2% | 436 | 2.2k | #63 |
| 57 | United Arab Emirates | 7.5 | 13.1% | 455 | 2.2k | #62 |
| 58 | Croatia | 7.1 | 10.3% | 506 | 1.9k | #56 |
| 59 | Qatar | 6.7 | 15.4% | 358 | 2k | #58 |
| 60 | Jordan | 6.3 | 15.6% | 382 | 1.9k | #72 |
| 61 | Kenya | 5.9 | 11.6% | 424 | 1.8k | #53 |
| 62 | Serbia | 5.5 | 11.0% | 451 | 1.7k | #64 |
| 63 | Lebanon | 5.2 | 13.8% | 294 | 1.7k | #67 |
| 64 | Morocco | 4.8 | 3.4% | 955 | 1.2k | #70 |
| 65 | Peru | 4.5 | 7.4% | 512 | 1.6k | #68 |
| 66 | Kazakhstan | 4.1 | 7.2% | 473 | 996 | #83 |
| 67 | Slovenia | 3.8 | 13.6% | 286 | 1.2k | #60 |
| 68 | Nepal | 3.4 | 4.4% | 667 | 1.3k | #66 |
| 69 | Philippines | 3.1 | 7.5% | 448 | 1.3k | #69 |
| 70 | Ecuador | 2.8 | 4.3% | 632 | 890 | #85 |
| 71 | Tanzania | 2.4 | 13.0% | 276 | 1.2k | #57 |
| 72 | Bulgaria | 2.1 | 5.3% | 445 | 977 | #61 |
| 73 | Tunisia | 1.8 | 2.8% | 765 | 825 | #65 |
| 74 | Sri Lanka | 149.6 | 6.4% | 290 | 785 | #77 |
| 75 | Slovakia | 118.9 | 9.7% | 237 | 978 | #55 |
| 76 | Cameroon | 88.6 | 8.1% | 258 | 801 | #75 |
| 77 | Algeria | 58.7 | 5.0% | 237 | 340 | #97 |
| 78 | Uzbekistan | 29.2 | 1.0% | 445 | 207 | #99 |
| 79 | Belarus | 0.0 | 2.6% | 236 | 334 | #88 |
countries ranked worldwide in Epidemiology (79). 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.
One bar per band of score, counting the rows on this page.