Sniffling rats

Deadly Diseases by Nick Arnold is the latest in the Horrible Science series
for children. He uses stories, cartoon characters and vile jokes to lure them
into the science. For example, an unusually graphic history of plague vaccine
comes replete with sniffling rat and desperate landlord. The target audience is
roughly 7 to 11-year-olds. Published by Scholastic, £3.99, ISBN
0439013682.