Evolving Epidemiology :The Scientist [2007-05-01]


	The article you are attempting to read is Premium content which is only available to our online subscribers.

Subscribing to The Scientist is easy and inexpensive.

And you can choose from many options. Try us out with an online day pass starting at only $4.95. Or, get it all with unlimited online access to The Scientist Archive and door-to-door delivery of our monthly print magazine.


	The Scientist also offers site licenses to institutions and organizations. When your librarian adds The Scientist to the library's collection, you can get unlimited online access through your place of work or study. Recommend The Scientist today



Evolving Epidemiology Franklin Roosevelt's granddaughter was one of 556 children in Washington, DC, bedridden with measles during one week in 1934. Before the introduction of a vaccine in the 1960s, explosive outbreaks occurred in large cities every two years. Influenza, by contrast, strikes every winter in a wave of infection that circles the globe before dying out. What makes patterns of spread in these two RNA