Text A: Reemerging Diseases 後学 Gone Today, Here Tomorrow? Santayana’ s dictum a those who cannot remember the past are doomed to repeat it The biological corollary a The belief that we've vanquished our ancient microbial enemies leaves us alarmingly vulnerable to them Page 26Text A: Reemerging Diseases: Gone Today, Here Tomorrow? ◼ Santayana’s dictum ❑ those who cannot remember the past are doomed to repeat it ◼ The biological corollary ❑ The belief that we’ve vanquished our ancient microbial enemies leaves us alarmingly vulnerable to them. Page 26