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onebir

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Posts posted by onebir

  1. 5 hours ago, webfact said:

    Somchai said they spend $100 a day each on average or around 3,000 baht and on average stay in Thailand 4-6 months of the year. 

     

    4 hours ago, RotBenz8888 said:

    How does Somchai know that? 

    I think it must be some kind of survey of the elite visa members. Given the 'luxury'/'high-end' tag, wonder if they don't feel under some pressure to inflate it. That said, if they're mostly staying in 5 star hotels, a starbucks or two and they're there ????

    • Like 1
  2. Since the vaccine was rolled out to over-60s first, starting Dec 20, they just compared the viral loads from PCR tests of over-60s with those of 40-60 year olds. Until Jan 15th there wasn't much difference, then there was. They estimate a 1.6-20x reduction in viral load (1.6-2.6 in PCR cycle threshold) after a single dose of the Pfizer vaccine.

     

    Paper

     

    Two things I don't get:

    - if the Israeli databases are so great, why just stratify by age? (ie why not match test results to vaccination status?)

    - the relationship between cycle threshold and viral load. (I thought the relationship was: 2^Ct ~ viral load, but that's not consistent with the figures reported).

     

    Anyway, to the people who keep saying there's no evidence vaccination reduces Covid transmissibility: NOW THERE IS

     

    • Like 1
  3. 5 hours ago, webfact said:

    Anutin said that 200,000 doses of the Chinese CoronaVac will arrive in Thailand later this month, followed by a supply of the AstraZeneca vaccine, Bangkok Biz News reported. 

     

    Thailand will then begin domestic production of  61 million doses of the AstraZeneca vaccine. Officials have indicated that production of the vaccine will begin around May or June. 

    Isn't the AZ vaccine distributed at cost, and licensed free? Supplying it to expats at cost/free isn't exactly the bigliest of magnanimosities...

  4. On 2/6/2021 at 6:36 AM, uncleP said:

    China's great firewall can't  beat well known VPN's so I doubt Burma can either. 

    It's possible China allows some VPNs (eg which only accept foreign credit cards, don't advertise in China/Chinese etc) for the convenience of foreigners in the country (&/ hefty bribes).

  5.  

    1 hour ago, Bkk Brian said:

    Close to 90% of people aged 60 and older in the country have received their first dose of Pfizer’s 2-dose vaccine so far. Now, data collected by Israel’s Ministry of Health show that there was a 41% drop in confirmed COVID-19 infections in that age group, and a 31% drop in hospitalizations from mid-January to early February. 

    https://www.nature.com/articles/d41586-021-00316-4

     

    One reason there may be blips or spikes is due to the younger population not vaccinated yet?

    Thanks, the drop in hospitalizations is bit more encouraging, though I see from that article it's not just me who's been disconcerted by the slow decline in cases.

     

    I don' think the spike over the last few days is hard to attribute solely to the unvaccinated population, unless they suddenly changed their behaviour. One exception might be if they weren't social distancing much, and a more infectious variant has started spreading amongst them. Even if that's the case, since the Pfizer vaccine is supposed to work pretty well on both UK and SA variants, I guess the spread should slow markedly now vaccination of younger age groups has started...

     

    (Another possibility is they've stepped up testing in order to provide better data to feed back to Pfizer. If so they should emphasize the +ve rate more; vaccinations failing to bring the case count down quickly risks playing into the hands of the anti-vaxxers...)

    • Like 1
  6. 1 hour ago, darksidedog said:

    Correct. It isn't late, it's non existent.

    Israel has already given an initial shot to over 60% of its population in comparison.

    Thailand still has no idea when or where theirs is coming from.

    Israel was extremely lucky, with a smallish population and a rather good health system (notably the IT) & the initiative (&/ chutzpah) to try jump the queue. Most countries lack at least one of those factors (developing countries in particular).

     

    But despite getting so many vaccinations done, the case count hasn't come down that much (~20% reduction from peak in 7dma as of 8th Feb) and had a worrying upward blip in the last few days. That may be due to lags in development of immunity + some superspreader events (huge religious funerals) about a week ago. I hope that's the case, because another possibility is that the spread's being driven by a variant (possibly even an undocumented one) that the vaccines they're using (mostly Pfizer) doesn't confer resistance to.

     

    (I'd like to see if the hospitalizations in Israel are coming down better, if anyone has a handy link to a graph of that.)

    • Like 2
  7. 15 minutes ago, GroveHillWanderer said:

    This new coronavirus so far has no new strains requiring a new vaccine, it only has variants that which are still susceptible to the current vaccines, to a greater or lesser extent.

    The line between a variant and a strain seems a bit ill-defined:

    Quote

    "A strain of a virus has distinct properties and a particular immune response. Then there's going to be lots and lots of variants which will be, in many cases, minor accumulations of mutations and different kind of genetic lines of that strain," Soucy said.

    Soucy said a certain strain of virus is considered a variant when it has enough mutations to change a minor portion of its genetic code.

    Presumably changing a "major portion" of it's genetic code makes it a new strain. But where's the line between minor and major?

     

    And if a vaccine still has some, but reduced efficacy for a new variant, where's the line for requiring a new vaccine?

     

    (It's possible to get an estimate by plugging that reduced efficacy etc into the epidemiological models, and seeing if the R0 is reduced below 1 at a plausible vaccination coverage. But an awful lot of estimates are go into that...)

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