@article{fdi:010061746, title = {{O}n the probability of extinction in a periodic environment}, author = {{B}aca{\¨e}r, {N}icolas and {D}ads, {E}. {A}.}, editor = {}, language = {{ENG}}, abstract = {{F}or a certain class of multi-type branching processes in a continuous-time periodic environment, we show that the extinction probability is equal to (resp. less than) 1 if the basic reproduction number is less than (resp. bigger than) 1. {T}he proof uses results concerning the asymptotic behavior of cooperative systems of differential equations. {I}n epidemiology the extinction probability may be used as a time-periodic measure of the epidemic risk. {A}s an example we consider a linearized {SEIR} epidemic model and data from the recent measles epidemic in {F}rance. {D}iscrete-time models with potential applications in conservation biology are also discussed.}, keywords = {{B}ranching process ; {E}xtinction probability ; {B}asic reproduction number ; {S}easonality ; {E}pidemic ; {FRANCE}}, booktitle = {}, journal = {{J}ournal of {M}athematical {B}iology}, volume = {68}, numero = {3}, pages = {533--548}, ISSN = {0303-6812}, year = {2014}, DOI = {10.1007/s00285-012-0623-9}, URL = {https://www.documentation.ird.fr/hor/fdi:010061746}, }