Historians interpret and differ in their conclusions, as do everybody else. More than one flavour of Musket has pointed this out.
Also, public health professionals differ in interpretations of this state of affairs. It needs no consensus to determine that there is a risk.
I am a bit rich me old love. Although teaching public health to medical students doesn't pay as well as my earlier work. Not sure my finances are relevant? Intentional naivity, a trait of Mudcat methinks?
Note by the way I said "conclusions" not "conclusion." in the post above. Detail to catch the foolish eh?