杏吧原创

Headlines about 鈥渘ew鈥� infections can be misleading. Far more common are
changes in the evolution and epidemiology of known microorganisms. Ecology of
Infectious Diseases in Natural Populations (edited by B. T. Grenfell and A. P.
Dobson, Cambridge University Press, 拢35/$59.95, ISBN 0 521 46502 8)
surveys the insights now coming from both mathematical and modelling
approaches.