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Epidemiology (Internal Medicine, Books): Amazon KDP category data
Amazon Books Best Sellers data for Epidemiology (Internal Medicine, Books), updated Nov 2, 2026: median price $21.86, median 101 reviews, average rating 4.5 and a KDPTop opportunity score of 31/100 (highly competitive).
| Price range (middle 50%) | $15.02 – $45.85 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 5% |
| Books on the list | 100 |
| Store | Books |
What stands out
- Its median reviews are 5% of the parent category Internal Medicine (2,081), one of the easier corners under it.
- Only 5% of its best sellers are under 90 days old, fewer than in 75% of Books categories: established titles hold the list.
- Prices spread wide: the middle half runs from $15.02 to $45.85, so budget editions and premium or boxed sets sell side by side.
Top 10 Epidemiology best sellers
-
Vaccines, Amen: The Religion of Vaccines
by Aaron Siri
- List rank#1
- Price$22.73
- Rating4.9
- Reviews774
-
Vax Facts: What to Consider Before Vaccinating at All Ages & Stages of Life
by Paul Thomas
- List rank#2
- Price$18.46
- Rating4.9
- Reviews575
-
Bad Medicine: How COVID Protocols Turned Hospitals into Death Traps
by Mikki Willis
- List rank#3
- Price$30.75
- Rating5.0
- Reviews2
-
Spillover
- List rank#4
- Price$26.95
- Rating4.7
- Reviews4,924
-
The Great Mortality: An Intimate History of the Black Death, the Most Devastating Plague of All Time ― A Powerful Narrative of Societal Collapse
by John Kelly
- List rank#5
- Price$15.97
- Rating4.5
- Reviews1,751
-
The Premonition: A Pandemic Story
- List rank#6
- Price$8.37
- Rating4.6
- Reviews18,720
-
Patient Zero: A Curious History of the World's Worst Diseases
by Lydia Kang MD
- List rank#7
- Price$26.39
- Rating4.5
- Reviews507
-
Plagues and Peoples
by William H. McNeill
- List rank#8
- Price$19
- Rating4.3
- Reviews712
-
Vaccines: Mythology, Ideology, and Reality
by John Leake
- List rank#9
- Price$29.31
- Rating4.8
- Reviews558
-
Vax-Unvax: Let the Science Speak (Children’s Health Defense)
by Brian Hooker
- List rank#10
- Price$19.69
- Rating4.8
- Reviews860
FAQ
Is Epidemiology a good niche for Amazon KDP?
Its KDPTop opportunity score is 31/100, which makes it highly competitive. The median best seller has 101 reviews and sells for $21.86.
How many reviews do you need to rank in Epidemiology?
The median best seller has 101 reviews, and 49% of them have fewer than 100.
What do Epidemiology best sellers cost?
The median price is $21.86; half of the best sellers are priced between $15.02 and $45.85.
Can new books break into Epidemiology?
5% of the current best sellers were released in the last 90 days.
About this data
Data comes from KDPTop's daily crawl of Amazon's public Best Sellers pages; medians use the latest list. The opportunity score (0–100, higher is easier to enter) combines the review barrier, the share of low-review books, list turnover, new-release share and price.