KDP categories · Top KDP authors
Contagious Diseases: Amazon KDP category data
Amazon Kindle eBooks Best Sellers data for Contagious Diseases, updated Nov 2, 2026: median price $7.49, median 148 reviews, average rating 4.5 and a KDPTop opportunity score of 17/100 (highly competitive).
| Price range (middle 50%) | $3.99 – $11.24 |
|---|---|
| Average rating | 4.5 |
| New releases (90 days) | 2% |
| Books on the list | 100 |
| Store | Kindle eBooks |
What stands out
- Its median reviews are 21% of the parent category Diseases & Physical Ailments (714), one of the easier corners under it.
- Only 2% of its best sellers are under 90 days old, fewer than in 93% of Kindle eBooks categories: established titles hold the list.
- Prices spread wide: the middle half runs from $3.99 to $11.24, so budget editions and premium or boxed sets sell side by side.
Top 10 Contagious Diseases best sellers
-
Isolation: A Post-Apocalyptic Survival Novel (Sympatico Syndrome Book 2)
by M. P. McDonald
- List rank#1
- Price$4.99
- Rating4.5
- Reviews2,786
-
The Hot Zone: The Terrifying True Story of the Origins of the Ebola Virus
- List rank#2
- Price$10.99
- Rating4.6
- Reviews8,343
-
The Ghost Map: The Story of London's Most Terrifying Epidemic--and How It Changed Science, Cities, and the Modern World
- List rank#3
- Price$9.99
- Rating4.4
- Reviews2,583
-
The Great Influenza: The Story of the Deadliest Pandemic in History
by John M. Barry
- List rank#4
- Price$14.99
- Rating4.6
- Reviews11,565
-
A Planet of Viruses: Third Edition
by Carl Zimmer
- List rank#5
- Price$15.94
- Rating4.5
- Reviews523
-
Bad Medicine: How COVID Protocols Turned Hospitals into Death Traps
by Mikki Willis
- List rank#6
- Price$16.99
- Rating5.0
- Reviews2
-
Rabid: A Cultural History of the World's Most Diabolical Virus
by Bill Wasik
- List rank#7
- Price$6.99
- Rating4.2
- Reviews1,151
-
Everything Is Tuberculosis: The History and Persistence of Our Deadliest Infection
by John Green
- List rank#8
- Price-
- Rating4.4
- Reviews11,568
-
Crisis in the Red Zone: The Story of the Deadliest Ebola Outbreak in History, and of the Outbreaks to Come
- List rank#9
- Price$9.99
- Rating4.7
- Reviews1,890
-
The Great Mortality: An Intimate History of the Black Death, the Most Devastating Plague of All Time
by John Kelly
- List rank#10
- Price$13.49
- Rating4.5
- Reviews1,751
FAQ
Is Contagious Diseases a good niche for Amazon KDP?
Its KDPTop opportunity score is 17/100, which makes it highly competitive. The median best seller has 148 reviews and sells for $7.49.
How many reviews do you need to rank in Contagious Diseases?
The median best seller has 148 reviews, and 45% of them have fewer than 100.
What do Contagious Diseases best sellers cost?
The median price is $7.49; half of the best sellers are priced between $3.99 and $11.24.
Can new books break into Contagious Diseases?
2% 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.