What Happened After the Chicken-Pox Vaccine?
In the COVID era, the success of the varicella vaccine in the nineties is staggering to contemplate.
Last summer, at the Centers for Disease Control and Prevention, an internal presentation on the coronavirus, which was leaked to the press, called the Delta variant of covid-19 “as transmissible as chicken pox.” Although the claim was found to be overstated, it’s easy to see why researchers may have been predisposed to draw parallels between the two diseases. Both varicella-zoster—the proper name for the chicken-pox virus—and the coronavirus are spread through the air, and both can be contagious before any symptoms are evident. Both have relatively mild impacts on most children, with a higher risk of more serious effects in adults. The mostly apocryphal tales of “covid parties”—which almost always turn out to be unintentional spreader events—descend from those of “chicken-pox parties,” where parents knowingly exposed their children to symptomatic peers. Continue reading