The COVID-19 pandemic, in the words of Tedros Adhanom Ghebreyesus, the director general of the World Health Organization (WHO), “is a once-in-a-century health crisis.” Indeed, the last public health emergency to wreak such havoc was the great influenza pandemic that began in 1918, which sickened about a third of the world’s population and killed at least 50 million people. But because global conditions are becoming increasingly hospitable to viral spread, the current pandemic is unlikely to be the last one the world faces this century. It may not even be the worst.The novel coronavirus hit...…The COVID-19 pandemic, in the words of Tedros Adhanom Ghebreyesus, the director general of the World Health Organization (WHO), “is a once-in-a-century health crisis.” Indeed, the last public health emergency to wreak such havoc was the great influenza pandemic that began in 1918, which sickened about a third of the world’s population and killed at least 50 million people. But because global conditions are becoming increasingly hospitable to viral spread, the current pandemic is unlikely to be the last one the world faces this century. It may not even be the worst.The novel coronavirus hit...WW…