id author title date pages extension mime words sentences flesch summary cache txt cord-014790-qp916bdd Mayer, Kenneth H. Ecological Studies of Diseases: Promise and Praxis 2009-03-17 .txt text/plain 1504 67 49 Both texts are looking for the fundamental factors in infectious diseases that impact the health of populations, and both seek to describe and explain the complex and active interplay of pathogens and hosts that occur in an everchanging pattern of exposures to new hosts, pathogens, and vectors, and changing physical environments. A myriad of human and animal activities (e.g., moving into new physical niches), plus factors like land and water use, and climate change affect the distribution and dispersal of vector populations which, in turn, influences pathogen prevalence and transmission, and ultimately infectious disease outbreaks in specific human populations. Based on ecological studies of the incidence of Lyme disease in recent years, including a series of manipulative experiments with mammals, it appears that the risk of dissemination of this zoonotic infection to humans has been greater when there is relatively less diversity among potential host reservoirs. There are other examples in this text of how basic ecology helps inform the public health approach to infectious disease outbreaks in humans. ./cache/cord-014790-qp916bdd.txt ./txt/cord-014790-qp916bdd.txt