Not even close. Smallpox is "designed" (over an optimization gradient) to attack our bodies. Although it would have been much more effective to not kill its hos

Not even close. Smallpox is "designed" (over an optimization gradient) to attack our bodies. Although it would have been much more effective to not kill its host. Showering is a practice that has likely had minimal selective pressure on our genes due to the relatively short history of the practice.