California’s measles outbreak has now reached more than 70 cases. 1
Populations especially at risk are those born after 1957 and vaccinated between 1963-1967 or not vaccinated. People born before 1957 would have been exposed to measles naturally and are ok; those not exposed to the virus in the wild will be vulnerable. People vaccinated 1963-1967 might have got the “killed virus” vaccine, which the Centers for Disease Control now say is ineffective, and they will be vulnerable.
Unvaccinated people will be vulnerable2 for what ought to be obvious reasons.
California permits unvaccinated students to enroll in public schools if their parents file a form saying their beliefs do not permit vaccination.
The percentage of unvaccinated students in Sacramento-area schools is over fifty percent in some cases.
As the historian Robert Johnston remarks, scholars used to treat anti-vaccination activists as “the deluded, the misguided, the ignorant, the irrationally fearful” but now they command ‘If not sympathy, at least a modicum of respect.”
I suppose we should respect those whom we can rationally fear.
1This is the outbreak that the press keep saying, correctly if punctiliously, began at “Disneyland Park and Disneyland California Adventure,” as if there were some important meaningful reason they couldn’t say “Disneyland”; Disneyland is offering a pretty good discount right now, by the way.
2A correspondent, I think correctly, points out in comments that all are potentially vulnerable once we drop below a percentage where we have “herd immunity.”