3 ms·

Tried-and-true vaccines are like plumbing or city infrastructure: Once established, it’s taken for granted and the true value can’t be intuited.

• amluto 2y ago
  BCG, sadly, is not really in that category.
  • noneeeed 2y ago
    What's the issue with the BCG? My understanding was that it had been sucessful, is that a bit of a myth?
    • amluto 2y ago
      It’s not very effective, and it’s apparent efficacy is bizarrely variable.
      • noneeeed 2y ago
        Thanks, I had no idea. It was the standard when I was growing up in the UK. It looks like it is no longer standard issue here.