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Thanks. > There are new Covid vaccines in development which provide sterilizing immunity... How far along are those and how long before they hit the shelf? I

• walterbell 5y ago
  It's still quite early, Phase 1 trials are underway for nasal-delivery vaccines from Spain, China and US. https://www.telegraph.co.uk/global-health/science-and-disease/spanish-scientists-start-trial-inhalable-covid-19-vaccine/ https://www.telegraph.co.uk/global-health/science-and-diseas... https://www.statnews.com/2021/08/10/covid-intranasal-vaccines/ https://www.statnews.com/2021/08/10/covid-intranasal-vaccine... In theory, a vaccine delivered via inhaler requires little or no training for administration, so the supply chain would be simplified. Given the current focus on vaccine passports, governments will probably want an approved witness to the vaccine being administered, even if they could technically be self-administered.
  • tim333 5y ago
    Bharat biotech and Altimune have done phase one trials. Altimunes was disappointing and they gave up on their vaccine. Bharat have not published info yet.