Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Disease evolution across a range of spatio-temporal scales
AU - Read, Jonathan M.
AU - Keeling, Matt J.
PY - 2006/9
Y1 - 2006/9
N2 - Traditional explorations of infectious disease evolution have considered the competition between two cross-reactive strains within the standard framework of disease models. Such techniques predict that diseases should evolve to be highly transmissible, benign to the host and possess a long infectious period: in general, diseases do not conform to this ideal. Here we consider a more holistic approach, suggesting that evolution is a trade-off between adaptive pressures at different scales: within host, between hosts and at the population level. We present a model combining within-host pathogen dynamics and transmission between individuals governed by an explicit contact network, where transmission dynamics between hosts are a function of the interaction between the pathogen and the hosts' immune system, though ultimately constrained by the contacts each infected host possesses. Our results show how each of the scales places constraints on the evolutionary behavior, and that complex dynamics may emerge due to the feedbacks between epidemiological and evolutionary dynamics. In particular, multiple stable states can occur with switching between them stochastically driven. (c) 2006 Elsevier Inc. All rights reserved.
AB - Traditional explorations of infectious disease evolution have considered the competition between two cross-reactive strains within the standard framework of disease models. Such techniques predict that diseases should evolve to be highly transmissible, benign to the host and possess a long infectious period: in general, diseases do not conform to this ideal. Here we consider a more holistic approach, suggesting that evolution is a trade-off between adaptive pressures at different scales: within host, between hosts and at the population level. We present a model combining within-host pathogen dynamics and transmission between individuals governed by an explicit contact network, where transmission dynamics between hosts are a function of the interaction between the pathogen and the hosts' immune system, though ultimately constrained by the contacts each infected host possesses. Our results show how each of the scales places constraints on the evolutionary behavior, and that complex dynamics may emerge due to the feedbacks between epidemiological and evolutionary dynamics. In particular, multiple stable states can occur with switching between them stochastically driven. (c) 2006 Elsevier Inc. All rights reserved.
KW - transmission networks
KW - within-host dynamics
KW - stochasticity
KW - small worlds
KW - strain evolution
KW - transitivity
KW - SEXUALLY-TRANSMITTED-DISEASES
KW - POPULATION-STRUCTURE
KW - INFECTIOUS-DISEASES
KW - PATHOGEN VIRULENCE
KW - COLORADO-SPRINGS
KW - CONTACT PATTERNS
KW - HOST POPULATION
KW - TRADE-OFFS
KW - DYNAMICS
KW - NETWORKS
U2 - 10.1016/j.tpb.2006.04.006
DO - 10.1016/j.tpb.2006.04.006
M3 - Journal article
VL - 70
SP - 201
EP - 213
JO - Theoretical Population Biology
JF - Theoretical Population Biology
SN - 0040-5809
IS - 2
ER -