I chose this book for my microbiology course supplemental reading, because it's a solid infectious disease epidemiology book. Very good layout, well written and interesting stories. However, it contains numerous small mistakes that are irritating, at least for a microbiologist. For example, the constant misuse of the word 'bacteria' which is a plural form from the word 'bacterium' (singular, not diminutive form, like the author claims). Almost every chapter contains some kind of a small factual or grammatical error like this. Almost considered giving my students extra credit if they find them, lol. Thus also only 4 stars. If they ever come out with a second edition, it better have these errors fixed.