Obviously they used a chimp adenovirus on the belief that few humans would have been exposed to it. The Astra Zeneca Oxford vaccine seems to be a lot cheaper than either Moderna's or Pfizer's version. The two-dose regimen is a definite drawback; humans are notoriously bad at coming back for the second dose. Ideally, a nasal spray would make it more palatable, as there's a lot of needle phobia out there, and some wacko conspiracy theories.
When I was a kid, vaccines were mandatory and administered in school. Unfortunately, that's no longer the case. It does seem like unless we get the entire world vaccinated over a month period this will be a chronic problem. Or maybe we'll get lucky and the virus will mutate into something more benign.
Obviously they used a chimp adenovirus on the belief that few humans would have been exposed to it. The Astra Zeneca Oxford vaccine seems to be a lot cheaper than either Moderna's or Pfizer's version. The two-dose regimen is a definite drawback; humans are notoriously bad at coming back for the second dose. Ideally, a nasal spray would make it more palatable, as there's a lot of needle phobia out there, and some wacko conspiracy theories.
When I was a kid, vaccines were mandatory and administered in school. Unfortunately, that's no longer the case. It does seem like unless we get the entire world vaccinated over a month period this will be a chronic problem. Or maybe we'll get lucky and the virus will mutate into something more benign.