Agrippa Nelson Bell,
Popular Science Monthly
(1904)
“ On the contrary, no matter how healthful the surroundings or the salubrity of the atmosphere, for poorly nourished and feeble persons, from whatever cause, there is no immunity from tuberculosis. For no one who even approximately comprehends the universality of microbic life—and of none more than tubercle bacilli—can fail to perceive that, however much we may be able to modify the external relations bearing upon liability to tuberculosis, nevertheless every individual, no matter where his dwelling place, is more or less subject to tubercle bacilli ”
