Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: On the epidemiology of influenza | Virology Journal BioMed Central Open Access On the epidemiology of influenza John J Cannell 1 Michael Zasloff2 Cedric F Garland3 Robert Scragg4 and Edward Giovannucci5 Address Department of Psychiatry Atascadero State Hospital 10333 El Camino Real Atascadero CA 93423 USA - Departments of Surgery and Pediatrics Georgetown University Washington . USA 3Department of Family and Preventive Medicine University of California San Diego La Jolla CA USA 4Department of Epidemiology and Biostatistics University of Auckland Auckland New Zealand and 5Departments of Nutrition and Epidemiology Harvard School of Public Health Boston MA USA Email John J Cannell - jcannell@ Michael Zasloff - maz5@ Cedric F Garland - cgarland@ Robert Scragg - Edward Giovannucci - egiovann@ Corresponding author Published 25 February 2008 Received 9 February 2008 Accepted 25 February 2008 Virologyjournal 2008 5 29 doi 1743-422X-5-29 This article is available from http content 5 1 29 2008 Cannell et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract The epidemiology of influenza swarms with incongruities incongruities exhaustively detailed by the late British epidemiologist Edgar Hope-Simpson. He was the first to propose a parsimonious theory explaining why influenza is as Gregg said seemingly unmindful of traditional infectious disease behavioral patterns. Recent discoveries indicate vitamin D upregulates the endogenous antibiotics of innate immunity and suggest that the incongruities explored by Hope-Simpson may be secondary to the epidemiology of vitamin D deficiency. We identify - and attempt to explain -nine influenza conundrums I Why is .