Tracking the next pandemic: Avian Flu Talk |
Delta limits vaccines |
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Dutch Josh
Adviser Group Joined: May 01 2013 Location: Arnhem-Netherla Status: Offline Points: 95957 |
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Posted: August 18 2021 at 9:07pm |
[url]https://www.livemint.com/news/world/covid19-vaccines-less-effective-against-delta-variant-study-11629330951770.html[/url] or https://www.livemint.com/news/world/covid19-vaccines-less-effective-against-delta-variant-study-11629330951770.html ; “We’re seeing here the real-world data of how two are performing, rather than clinical trial data, and the data sets all show how the delta variant has blunted the effectiveness of both the Pfizer and AstraZeneca jabs," said Simon Clarke, an associate professor in cellular microbiology at the University of Reading. DJ After three monts since second vaccination AstraZeneca protection 61%, Pfizer 75% (against severe disease ?). Viral parts/load in vaccinated and unvaccinated the same... How this will translate in what to expect ? If vaccinations could limit people getting infected (including asymptomatic infections) and if the vaccinated that did get infected would be spreading less viral load for a shorter time-then vaccinations can be still a major factor in stopping this pandemic.... If most of the vaccine effect would-only-be in protection against severe disease, maybe 10-50% protection against infection, and infected vaccinated spread the same amount of viral parts for the same time the need for much more restrictions/NPI is URGENT !!! DJ-Some studies indicate exponential growth of the R0 in variants...each new variant 1,5 times more infectious then the one that started the earlier wave. Delta R0= between 5 and 8 next variant (certainly with vaccines) may show R0 of 12... Delta is allready airborne...1,5-2 meter social distance may not be enough to prevent infection... Reopening schools without masks, social distancing, ventilation, vaccination is criminal ! |
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