Volume 74, Number 3, May 2006
|Page(s)||547 - 553|
|Section||Interdisciplinary physics and related areas of science and technology|
|Published online||31 March 2006|
Long-range transport and universality classes in in vitro viral infection spread
Centro de Astrobiología, CSIC-INTA - Ctra. de Ajalvir km. 4 28850 Torrejón de Ardoz, Madrid, Spain
2 Centro de Biología Molecular Severo Ochoa, CSIC-UAM - Universidad Autónoma de Madrid - Cantoblanco, 28049 Madrid, Spain
Accepted: 8 March 2006
Dispersal mechanisms play a main role in the dynamics of infection spread. Recent experimental results with in vitro infections of foot-and-mouth disease virus reveal that the time needed for the virus to kill a cellular monolayer depends qualitatively on the number of viral particles required to initiate infection in a susceptible cell. A two-dimensional susceptible-infected-removed (SIR) model based on the experimental setting agrees with the observations only when viral particles are subject to long-range transport. Numerical and analytical results show that this long-range transport plays a role when a single particle causes infection, while it is inefficient when complementation between two or more particles is necessary.
PACS: 87.15.Aa – Theory and modeling; computer simulation / 87.23.-n – Ecology and evolution / 89.90.+n – Other topics in areas of applied and interdisciplinary physics
© EDP Sciences, 2006
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