Jump to content

Duda Jarek

Senior Members
  • Joined

  • Last visited

Everything posted by Duda Jarek

  1. good interview:
  2. Tomorrow EU starts mass vaccination https://www.france24.com/en/europe/20201226-european-union-begins-coronavirus-vaccine-rollout-as-new-strain-spreads ... as the new strains like UK's are quickly spreading - what do we know about vaccine efficiency for them? It is great that there are lots of them - covering various mechanisms, hopefully allowing for effective war with mutations (https://www.nytimes.com/interactive/2020/science/coronavirus-vaccine-tracker.html 3 approved, 5 limited approved, 18 in phase III). Very nice explanation of Pfizer mRNA vaccine: https://berthub.eu/articles/posts/reverse-engineering-source-code-of-the-biontech-pfizer-vaccine/, especially: - it uses Psi (1-methyl-3’-pseudouridylyl) instead of U (uracil) - works the same, but with weaker immune response, - uses synonymous codons with increased numbers of C and Gs (e.g. CUU -> CUG both encode Leucine), which are converted more efficiently into proteins, - two amino acids are changed comparing to virus spike protein (K,V -> P) to handle the problem of difference between pre- and post-fusion spike protein - this exchange into Proline makes them fold into the proper shape without being mounted to a virus (known since 2017 thanks to work on SARS-CoV-1).
  3. UK starts mass vaccination: https://www.bbc.com/news/uk-55218679
  4. U.K. Approves Pfizer Coronavirus Vaccine, a First in the West https://www.nytimes.com/2020/12/02/world/europe/pfizer-coronavirus-vaccine-approved-uk.html
  5. 18th November Pfizer 95 percent https://www.theguardian.com/world/2020/nov/18/pfizer-covid-19-vaccine-95-effective-and-safe-further-tests-show Time for another bid for Sputnik and Moderna
  6. 9th November: Pfeizer "90 percent efficient" https://www.the-scientist.com/news-opinion/pfizers-covid-19-vaccine-90-percent-effective-initial-data-68138 11th November: "Sputnik V 92 percent" https://www.aljazeera.com/news/2020/11/11/russia-says-sputnik-v-covid-19-vaccine-is-92-percent-effective 16th November: "Moderna 94.5 percent" https://www.nytimes.com/2020/11/16/health/Covid-moderna-vaccine.html Who's next? ... in the meantime e.g. https://www.marketwatch.com/story/pfizers-ceo-sold-5-6-million-worth-of-shares-on-the-day-of-its-big-vaccine-news-so-what-11605280170
  7. Another very similar molecule is NH3 ... found e.g. on Pluto - not suggesting biological source only geological: https://advances.sciencemag.org/content/5/5/eaav5731 Detection of ammonia on Pluto’s surface in a region of geologically recent tectonism
  8. Oxygen-free environments seem characteristic for geological processes (?), and PH3 is similar to CH4 released by our geology - if phosphorus dominates instead of carbon, couldn't phosphine by synthesized in oxygen-free geological environments? "Geologic emissions of methane to the atmosphere": https://pubmed.ncbi.nlm.nih.gov/12430657/ ps. SH2 can be produced by bacteria: https://en.wikipedia.org/wiki/Hydrogen_sulfide#Biosynthesis_in_the_body Phosphine also occurs in Earth atmosphere ... and Jupiter: https://en.wikipedia.org/wiki/Phosphine#Occurrence Can be generated by bacteria: https://www.researchgate.net/publication/12507095_Phosphine_generation_by_mixed-_and_monoseptic-cultures_of_anaerobic_bacteria
  9. Here is their recent Lancet paper: https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)31866-3/fulltext https://www.reuters.com/article/us-health-coronavirus-russia-vaccine/russias-covid-19-vaccine-showed-antibody-response-in-initial-trials-idUSKBN25V1I2 Looks promising, but there are some suspicions: https://www.cnbc.com/2020/09/10/scientists-question-russian-vaccine-trial-data-on-unlikely-patterns.html Yesterday WHO vaccine report: https://www.who.int/publications/m/item/draft-landscape-of-covid-19-candidate-vaccines A worse news, probably the most promising (AstraZeneca) trial is on hold: https://www.nature.com/articles/d41586-020-02594-w
  10. ... and approval for military use in China:
  11. Also China and probably others ... and minimizing e.g. expected number of casualties, this might be a reasonable behavior. Personally, if having opportunity to participate in such test, if only not having some nasty side effects, I don't think if I would have any doubts.
  12. https://www.bbc.com/news/world-europe-53735718 Coronavirus: Putin says vaccine has been approved for use Two more Stage III (8, +1 "approved") in https://www.nytimes.com/interactive/2020/science/coronavirus-vaccine-tracker.html
  13. Over a million doses of Oxford/AstraZeneca coronavirus vaccine possible by September, says researcher https://www.reuters.com/article/us-health-coronavirus-oxford-vaccine-res/over-a-million-doses-of-oxford-astrazeneca-covid-19-vaccine-possible-by-september-researcher-idUSKCN24L1TW Also two more Phase III (to 6 + 1 approved) in https://www.nytimes.com/interactive/2020/science/coronavirus-vaccine-tracker.html
  14. https://www.nejm.org/doi/full/10.1056/NEJMoa2022483 General optimism and preparation for vaccine this December:
  15. There was added "approved" on this vaccine tracker ... for military use, also in phase II:
  16. From https://www.nytimes.com/interactive/2020/science/coronavirus-vaccine-tracker.html , third vaccine has entered phase III:
  17. https://www.nytimes.com/interactive/2020/science/coronavirus-vaccine-tracker.html Phase III: 2 Phase II: 8 e.g. Moderna to start Phase III in July, Phase I: 10 Preclinical: 125+
  18. Is there a problem with this https://en.wikipedia.org/wiki/Molecular_clamp - that proteins in virus have higher energy required for fusion? Just putting mRNA into a cell, shouldn't it produce the lowest energy protein? If so, are these two configurations essentially different from anti-body perspective? Would such immune system attack infected cells and/or virus itself?
  19. https://news.sky.com/story/coronavirus-covid-19-vaccine-for-30-million-by-september-if-trial-succeeds-says-sharma-11990039
  20. https://arstechnica.com/science/2020/05/the-ars-covid-19-vaccine-primer-100-plus-in-the-works-8-in-clinical-trials/
  21. I see, there are many reasons China will probably be first - from 23th March: https://www.clinicaltrialsarena.com/news/china-covid-19-vaccine-trial-begins/ https://en.wikipedia.org/wiki/COVID-19_vaccine
  22. Good discussion about covid19 vaccine development: https://www.ted.com/talks/seth_berkley_the_quest_for_the_coronavirus_vaccine A radical approach to speedup: "Should scientists infect healthy people with the coronavirus to test vaccines?": https://www.nature.com/articles/d41586-020-00927-3
  23. It is hard to tell how to interpret it, but the life cost (also economical) is just too high to allow for 18 month trials to satisfy regulations - "casualties of waiting" should be included in calculations. If being at least a bit promising and excluding toxicity, I believe massive usage will start - to test it in the field in endangered regions.
  24. https://www.jpost.com/HEALTH-SCIENCE/Israeli-scientists-In-three-weeks-we-will-have-coronavirus-vaccine-619101
  25. Imperial Collage predictions for UK - to save lives with vaccine, it would be needed by November: https://www.imperial.ac.uk/news/196234/covid19-imperial-researchers-model-likely-impact/

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.