KDP categories · Top KDP authors
Tropical Medicine (Infectious Disease, Kindle eBooks): Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Tropical Medicine (Infectious Disease, Kindle eBooks), updated Nov 2, 2026: median price $8.99, median 3 reviews, average rating 4.4 and a KDPTop opportunity score of 21/100 (highly competitive).
| Price range (middle 50%) | $2.99 – $43.44 |
|---|---|
| Average rating | 4.4 |
| New releases (90 days) | 1% |
| Books on the list | 98 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 1% of the parent category Infectious Disease (299), one of the easier corners under it.
- Only 1% of its best sellers are under 90 days old, fewer than in 94% of Kindle eBooks categories: established titles hold the list.
- Its review barrier is lower than in 92% of Kindle eBooks categories: the median best seller has only 3 reviews, so new books can chart with few.
Top 10 Tropical Medicine best sellers
-
The Fever: How Malaria Has Ruled Humankind for 500,000 Years
by Sonia Shah
- List rank#1
- Price$2.99
- Rating4.4
- Reviews309
-
The Flesh Eaters: The World's Deadliest Flesh-Eating Diseases
by J.D. Sherwood
- List rank#2
- Price$4.99
- Rating4.3
- Reviews54
-
Kratom: 101 Things You Need To Know About Kratom
by Frank Coles
- List rank#3
- Price$4.99
- Rating4.5
- Reviews162
-
Oxford Handbook of Expedition and Wilderness Medicine (Oxford Medical Handbooks)
by Chris Johnson
- List rank#4
- Price$47.19
- Rating4.7
- Reviews16
-
MARIJUANA: Guide To Illness And Pain Management
by Mary Solomon
- List rank#5
- Price$2.99
- Rating4.1
- Reviews78
-
The 14-Day Parasite Detox Protocol: The Natural Way to Eliminate Fatigue, Brain Fog, and Anxiety - A Safe, Gentle Cleanse With Gut-Healing Recipes, a Complete ... Meal Plan, and Herbal Remedies For Humans
by Pam King
- List rank#6
- Price$9.99
- Rating5.0
- Reviews19
-
Under the Big Tree: Extraordinary Stories from the Movement to End Neglected Tropical Diseases
by Ellen Agler
- List rank#7
- Price$25.39
- Rating4.6
- Reviews13
-
Oxford Handbook of Expedition and Wilderness Medicine (Oxford Medical Handbooks)
by Jon Dallimore
- List rank#8
- Price$40.79
- Rating4.6
- Reviews34
-
The Hunt for a New Killer Virus
by John G. Fuller
- List rank#9
- Price$6.99
- Rating4.7
- Reviews112
-
The Best sex In The World (Medicines, erection, sex): 10 substances that will make an erection 104%
by Henry Gilman
- List rank#10
- Price$0.99
- Rating3.2
- Reviews17
FAQ
Is Tropical Medicine a good niche for Amazon KDP?
Its KDPTop opportunity score is 21/100, which makes it highly competitive. The median best seller has 3 reviews and sells for $8.99.
How many reviews do you need to rank in Tropical Medicine?
The median best seller has 3 reviews, and 94% of them have fewer than 100.
What do Tropical Medicine best sellers cost?
The median price is $8.99; half of the best sellers are priced between $2.99 and $43.44.
Can new books break into Tropical Medicine?
1% 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.