Lessons from the 1976 Non-pandemic
Almost forty million men, women, and children were immunized before public health athorities acknowledged that there was no pandemic. Very sadly, the swine flu vaccine caused at least 25 deaths. The vaccine was also linked to substantial increase in the incidence of Guillain-Barré syndrome, a serious (and otherwise rare) nerve disease.
The immunization campaign is widely regarded as one of the worse public health humiliations in US history, and its consequences can not be far from the mind of any public health official who now warns of the potential of a H5N1 pandemic.
Is it different this time?
Mark Twain once said, "History may not repeat itself, but it rhymes." There is something to be learned from the 1976 experience; somethings have already been learned. One lesson is that producers of vaccine have a dicy business. This is why the hundred-plus US flu vaccine producers in the US in 1976 have been driven down to just two --- an economic story that deserves its own page.
One of take-aways from the 1976 senario is simply a reminder that human beings are remarkably poor at dealing with uncertainty. As a species, we have been well served by assuming that "things happen for a reason," and evolution has left us without much natural talent for dealing with things that genuinely depend on chance.
Then and Now
Let's look at some of the changes that have taken place since 1976 to see how they might draw a distiction between pandemic predictions then and pandemic preditions now.
- World-wide monitoring is vastly improved
- Understanding of the mutation pathways of viruses is greatly extended
- Information sharing between nations has improved; in particular, the mental models that now frame the pandemic risks are not primarily US models. They are genuinely international models
Bottom Line?
The events of 1976 underscore the real consequences of reputaion risk, and public health officials every where are keenly aware of the risks of crying wolf. If the cry goes out now, we know that they know the risk that is being taken. To ignore the cry today would be to fail to learn what 1976 has to teach us.
Reference: Fluwiki has a useful page on the 1976 pandemic, including a insightful quote from one of my favorite public policy books, Neustadt and May, Thinking in Time: The Uses of History for Decision Makers (1988).