In hindsight, these will be soon redundant. I remember lots of pundits (rightly) cautioning that it might take 1-2 years to get an effective vaccine. The army

In hindsight, these will be soon redundant. I remember lots of pundits (rightly) cautioning that it might take 1-2 years to get an effective vaccine. The army had to start designing before they knew how effective vaccines would be and when they'd be released. Sure, they had a guess that a SARS-CoV2 vaccine would be a much easier vaccine target than HIV, but there are often unforeseen difficulties.