The second dose
Biden plans to more quickly push out available vaccine doses, relying on manufacturing commitment and capability to provide a timely second dose. That seems quite reasonable to me. So long as it doesn’t cause a long delay between doses. A virologist points out that a large populace of partially immune people creates the perfect environment for the evolution of coronavirus variants that are resistant to the vaccine. Let’s hope those who get a first dose are mostly diligent about getting a timely second.
In Texas, as with other states, bad planning has delayed the uptake. Here in Corpus Christi, the city’s vaccine registration website failed yesterday, on its launch. It’s hard to worry about a second dose, when the first still seems so distant.
Vaccination is such an old practice that we don’t know its full history.