“older people are an enormous asset to our societies, not only because a large majority of them continue to work in old age, but also because they convey social values to younger generations” dr. wesum asia/pacific regional conference on ageing 2012 the population ages 65 and over is expected to grow very rapidly in all parts of the world. over the next decades, the elderly population is projec...

The evolution of disease requires a firm understanding of heterogeneity among pathogen strains and hosts with regard to the processes of transmission, movement, recovery, and pathobiology. In this chapter, we build on the basic methodologies outlined in the previous chapter to address the question of how to model the invasion and spread of diseases in heterogeneous environments, without making ...

1 Service of Internal Medicine, San Cecilio Universitary Hospital, University of Granada, 18012 Granada, Spain 2Department of Public Health, University of Helsinki, 00014 Helsinki, Finland 3Welfare and Health Promotion Division, National Institute for Health and Welfare, 00300 Helsinki, Finland 4Diabetes Prevention Unit, Department of Chronic Disease Prevention, P.O. Box 30, 00271 Helsinki, Fin...

Plum pox, an invasive disease recently identiÞed in Pennsylvania stone fruit orchards, is caused by the aphid-transmitted Plum pox virus (genus Potyvirus, family Potyviridae, PPV). To identify potential vectors, we described the aphid species communities and the seasonal dynamics of the dominant aphid species within Pennsylvania peach orchards. Aphids were trapped weekly in 2002 and 2003 from m...