Lesson from the Diamond Princess: Panic Is Unwarranted

As of today there have been 696 reported cases of coronavirus among the 3,711 passengers who were aboard the Diamond Princess cruise ship. The ship was quarantined on February 1; all passengers and crew had disembarked by March 1. As of March 1, there were 6 deaths among those infected, and the number hasn’t grown (as of today).

Given the ease with which the virus could be transmitted on a ship, the Diamond Princess may represent an upper limit on contagion and mortality:

  • an infection rate of 19 percent of those onboard the ship
  • a fatality rate of less than 1 percent among those known to have contracted the disease
  • a fatality rate of less than 2/10 of 1 percent of the population potentially exposed to the disease.

Conclusion: There is no question that coronavirus represents a significant threat to life, health, and economic activity. But the panic being fomented by the media and opportunistic politicians is unwarranted.