Pavlov Lives. If Only He Were A Virologist

It feels like I've used the word "inauspicious" at least a half-dozen times over the past several days. Unfortunately, I'm compelled to employ it again. Breakthrough cases of COVID are occurring among high-level US officials and also among high-profile athletes, an inauspicious development, even if the vaccines ultimately prove effective at preventing severe disease. On Tuesday, Nancy Pelosi's office said a staffer tested positive after being vaccinated. And Jen Psaki confirmed that a vaccinat