Mice raised in a germ-free environment have improved health measures and longer average life span: http://dx.doi.org/10.1016/j.chom.2017.03.002 http://dx.doi.o

Mice raised in a germ-free environment have improved health measures and longer average life span: http://dx.doi.org/10.1016/j.chom.2017.03.002 http://dx.doi.org/10.1016/j.chom.2017.03.002 Not all pathogens are equal; cytomegalovirus may be far more important than the rest: https://doi.org/10.3389/fimmu.2017.01953 https://doi.org/10.3389/fimmu.2017.01953 And historically, reducing the burden of infectious disease already has increased life expectancy and reduced/postponed incidence of age-related disease: http://www.slate.com/articles/health_and_science/science_of_longevity/2013/09/life_expectancy_history_public_health_and_medical_advances_that_lead_to.single.html http://www.slate.com/articles/health_and_science/science_of_...