COVID-19 Records

Chat message

Slack / Private Message Drop, p.382 [SLACK_000596] · slack_pm:msg:03973

Page text: p.382 · original PDF

Date
2021-01-11 15:13
Type
chat message · slack
recipient
Robert F. Garry, Edward C. Holmes, Andrew Rambaut
speaker
Kristian G. Andersen

Recipients on this medium are inferred from channel membership, not per-message addressing.

Yeah.

In context

A single line often inverts meaning once you see what it answers, so neighbouring messages are always shown.

  1. 2021-01-11 15:11 Kristian G. Andersen open
    > It seems like all of these lineages are converging to the same set of mutations And just to this part - it's strongly suggestive of some very pervasive selections pressure that's in common in all these places. Or, alternatively (but I think less likely) something like this: https://www.cell.com/cell/fulltext/S0092-8674(17)30292-1?_returnURL=https%3A%2F%2Fl[...]vier.com%2Fretrieve%2Fpii%2FS0092867417302921%3Fshowall%3Dtrue
  2. 2021-01-11 15:12 Andrew Rambaut open
    Except that these 3 cases have a shit load of other stuff. Masses of spike mutations (and no synonymous in spike). Orf8 mutations and that nsp6 deletion
  3. 2021-01-11 15:12 Kristian G. Andersen open
    Why're we seeing it now and not earlier? More widespread transmission, vaccines being deployed in some places, more standing immunity. But I do feel something's up here - doesn't seem normal to find so many clearly unrelated lineages ending up with a subset of the same mutations. That's just weird.
  4. 2021-01-11 15:13 Andrew Rambaut open
    3 very strange events with similar sets of mutations come up.
  5. 2021-01-11 15:13 Kristian G. Andersen
    Yeah.
  6. 2021-01-11 15:13 Kristian G. Andersen open
    And in different parts of the world - with different climates, so not e.g., a "cold" adaptation.
  7. 2021-01-11 15:14 Andrew Rambaut open
    Yup. Manaus is not chilly this time of year!
  8. 2021-01-11 15:15 Kristian G. Andersen open
    They DID have a fuck ton of infections in the spring though. Same for UK. Same for RSA.
  9. 2021-01-11 15:15 Andrew Rambaut open
    Rare chronic infections could just be a ready source of these mutations in combination (because they can all be selected for in the very large population sizes). When you get the combination it takes off

Full conversation →