Best of the Spectator

The Book Club: The Hidden History of the Life We Breathe

Jun 25, 2025
Carl Zimmer, a science writer renowned for his exploration of biology, delves into the fascinating world of the aerobiome in this engaging discussion. He reveals how Louis Pasteur’s experiments laid the groundwork for understanding airborne life and disease. The conversation touches on the military's controversial use of aerobiology during WWII and the historical shift from miasmas to germ theory. Zimmer also discusses how COVID-19 reshaped our awareness of airborne transmission, challenging long-held misconceptions about disease spread.
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ANECDOTE

Pasteur's Glacier Germ Capture

  • Louis Pasteur pioneered capturing germs from the air using flasks on a glacier.
  • This groundbreaking experiment showed the existence of the aerobiome and was foundational for understanding airborne microbes.
INSIGHT

Germ Theory vs Miasma

  • Early germ theory clash with miasma theory hindered recognition of airborne disease spread.
  • This scientific disagreement caused a century of neglect for airborne infection risks.
ANECDOTE

Wells Couple's Airborne Research Struggles

  • William and Mildred Wells studied how human breath releases droplets carrying pathogens.
  • Despite breakthroughs, their difficult personalities led to job losses at Harvard and Penn.
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