Many journalists and other starry-eyed fans of peer review should read this
Ben versus Bob

Hemolytic uremic syndrome is caused by bacterial infection

Assistant Professor of Epidemiology Tara C Smith:

As I've laid out this week (part 1part 2part 3), the realization that a fairly simple, toxin-carrying bacterium could cause a "complex" and mysterious disease like hemolytic uremic syndrome came only with 30 years' of scientific investigation and many false starts and misleading results. 

Related: Paul Jaminet writes:

As regular readers know, I believe that many other “noncommunicable” diseases are actually caused in part by chronic infections. Cardiovascular disease is one . . .

There's a lot more information about this and other diet and health matters on his Perfect Health Diet blog