Diseases and People Books in Order
2 books by Nancy Day. Reading level: Grades 8.3–9.6. Upper Grades (Ages 12+).
Series books grow with readers — but that's also the trap. Most series start at one reading level and one content intensity and drift upward over the course of the run. Diseases and People (2 books by Nancy Day) lands at reading level Grades 8.3–9.6, with average content intensity 1.5/5. Intensity stays consistent across the series — a kid who can handle the first book can generally handle the rest.
The reading-order table below lists every book with per-volume reading level and intensity badges so you can spot any escalation before it catches your reader off guard. For a deeper dive into how we score text difficulty vs. emotional weight separately — and why series readers especially benefit from that split — see our methodology page.
Content Intensity Across the Series
ConsistentContent stays at a steady intensity level throughout the series.
Diseases and People Reading Order
| # | Title | Reading Level | Content |
|---|---|---|---|
| 1 | Malaria, West Nile, and other mosquito-borne diseases Nancy Day | Level 9-10 | Mild |
| 2 | Sleep disorders Gail B. Stewart | Level 8-9 | Gentle |
All Diseases and People Books
Questions about the Diseases and People series
- What reading level is the Diseases and People series?
- The Diseases and People series by Nancy Day is at a Grades 8.3–9.6 reading level (average Grade 8.9). Intended for Upper Grades (Ages 12+). There are 2 books in the series.
- What order should I read the Diseases and People books?
- The reading-order table above lists all 2 books with per-volume reading level and intensity ratings. Start with book 1 and read in publication order unless the table indicates a different recommended order for newer readers.
- What age is the Diseases and People series appropriate for?
- The Diseases and People series is recommended for Upper Grades (Ages 12+). The average content intensity is 1.5/5. Check the intensity trajectory above to see whether content gets heavier across the series — if it does, sensitive readers may want to stop earlier in the run.