Thai study shows antibody levels after 2 doses of Sinovac drop 50% every 40 days

[smedly]

3 minutes ago, DrJack54 said:

Today 9317

Die 87

shti

[ThailandRyan]

4 minutes ago, DrJack54 said:

Today 9317

Die 87

Thanks for the heads up.  Wonder what the number of tests done was...

[4MyEgo]

Apart from your own immune system, Moderna and Pfizer's mRNA vaccine technology is the way to go for years of protection.

 

https://www.verywellhealth.com/pfizer-moderna-covid-vaccine-lasting-immunity-5191179

[phetphet]

GF has had two shots of Sinovac. Like others, her outlook is, "I read it is not effective, but what can I do? That is what they gave me and there is no other vaccine available."

 

 

[animalmagic]

50 minutes ago, Blumpie said:

Sounds about right.  

And the chances of having a bad reaction is probably higher.  

Better get drunk to make your decision if you want to get it or not - more of a chance y ou will actually get it.  

I'll keep the beer mat then!

Just read in Bangkok Post that a doctor and a nurse who both had received the 2 Sinovac jabs died of covid.

[Caspersfriend]

5 minutes ago, Bkk Brian said:

Thanks yes I read it, unfortunately no studies carried out on Sinovac with variants of concern, only with the original strain covid-19.

 

The reality is that strain has now all but disappeared in Thailand, with delta the prominent strain we know that Sinovac's effectiveness is nowhere near that claimed in previous studies. 

 

 

Agreed. And even that data is of little use to those of us who are in the over-60 group.

 

"The WHO said studies showed the Sinovac vaccine "prevented symptomatic disease in 51% of those vaccinated and prevented severe Covid-19 and hospitalization in 100% of the studied population" for adults aged 18 and older, when it approved the jab in June.

It added that only a few adults over the age of 60 were enrolled in clinical trials, so efficacy could not be estimated for that age group."

 

"At the time, the WHO said: "Vaccine efficacy for symptomatic and hospitalized disease was estimated to be 79%, all age groups combined."

However, it added once again that there wasn't enough over 60s enrolled in clinical trials to estimate the efficacy for the age group. It still recommends the vaccine for older people though."

[wensiensheng]

Back of the envelope calculations:

 

Bangkok is having 9k cases a day. Conventional wisdom seems to be that for every one case you find, there are 10 that you do not, so really bangkok has 90k cases a day. In 10 days that is 900k cases. Extrapolate that and it would mean that in 100 days from about now, 9 million Bangkok cases, or natural population protection.
 

Delta may have a very steep bell curve due to its transmissibility. So a very ugly 3 months coming up, after that maybe there’s a calm before the next strain, or before people get reinfected.

 

I hope the authorities are thinking about longer term protection and not just the next 3 months because I think the next 3 months has got away from them anyway.

 

 

Edited July 14, 2021 by wensiensheng

[Srikcir]

8 minutes ago, Bkk Brian said:

Any links on how well it did or not, against Delta or Alpha, or Beta for that matter?

"Sinovac and Sinopharm are studying the protection the vaccines provide against the Delta variant, but haven't released any data yet." (my bold)

https://www.wsj.com/articles/countries-signal-doubts-about-delta-protection-from-chinese-vaccine-11626183948

Maybe Thailand should demonstrate its sovereignty by making its own investigations, in conjunction with Western nations that developed the more Delta variant resistant vaccines. Vaccines that Thailand could have ordered in January 2021 or earlier. 

But what price would the Prayut government pay to cause China to lose international face? 

[wensiensheng]

5 minutes ago, phetphet said:

GF has had two shots of Sinovac. Like others, her outlook is, "I read it is not effective, but what can I do? That is what they gave me and there is no other vaccine available."

 

 

That’s the problem with taking the offer of a sinovac jab. You’re then precluded from getting anything else, at least from the government.

 

on the flip side, if you don’t take the sinovac offer, there isn’t currently anything else.

 

damned if you do, damned if you don’t.

[Caspersfriend]

6 minutes ago, wensiensheng said:

That’s the problem with taking the offer of a sinovac jab. You’re then precluded from getting anything else, at least from the government.

 

on the flip side, if you don’t take the sinovac offer, there isn’t currently anything else.

 

damned if you do, damned if you don’t.

Unless you're assessed as being in the front-line. Then you are being urged/forced to have an AZ 'booster' in a mix n match that is even less [zero?] tested than the existing 'emergency approval' testing.

[Mac Mickmanus]

3 hours ago, smedly said:

why not just come out a say it

 

sinovac is useless

 

there I just did

 

why don't the WHO revise their recommendations (I think we know why)

A virus that came from China and they make and give  a vaccine that doesnt work hHHmmmmmmm

[Henryford]

50% of nothing is nothing.

[BE88]

1 hour ago, JoePai said:

Dream on, there is no vaccine with a 100% guarantee

 

I agree now but see now J&J and AZ are already developing new vaccines without side effects and 100% effective, wait and see

 

 

Edited July 14, 2021 by BE88

[wensiensheng]

27 minutes ago, Caspersfriend said:

Unless you're assessed as being in the front-line. Then you are being urged/forced to have an AZ 'booster' in a mix n match that is even less [zero?] tested than the existing 'emergency approval' testing.

Yes, untested, under researched and only applied to a tiny slice of the population. If it works it’s great for those few, of no help to the broader population. If it doesn’t work, those at risk stay unprotected.

 

[hotchilli]

5 hours ago, webfact said:

Clinical research has shown that the antibody levels in a person fully inoculated with two doses of the Chinese-made Sinovac vaccine drops by half every 40 days, according to Dr. Anan Jongkaewwattana, a virology researcher at the National Centre for Engineering and Biotechnology (BIOTEC).

Sounds about right, most stuff coming out of China only lasts a month.

[TheFishman1]

 No real surprise about as efficient as Thailand’s rollout A vaccine for all people living in Thailand TIT

[smedly]

57 minutes ago, wensiensheng said:

That’s the problem with taking the offer of a sinovac jab. You’re then precluded from getting anything else, at least from the government.

 

on the flip side, if you don’t take the sinovac offer, there isn’t currently anything else.

 

damned if you do, damned if you don’t.

I still want to know if I have had covid - if I have then that does in fact offer me natural protection likely better and longer than the chinese junk

[mfd101]

3 hours ago, JonnyF said:

Consistent with Thailand's vaccine debacle, they have millions of these on order. Good job Anutin, maybe time for a smug smile and some more lies.

Poor Sisyphus. There is, as my maternal oracle might have said, always something.

[Eric Loh]

1 hour ago, ThailandRyan said:

Thanks for the heads up.  Wonder what the number of tests done was...

My staff got infected and tests was rejected by few hospitals citing that they are full. Eventually he got tested after 3 days in a private clinic for 900 B. Whether the private clinic reported the case to the government is unsure. I have much doubt of the government daily numbers. 

[Cake Monster]

If this research has been authenticated and is credible, the ramifications for many Nations that have been reliant on Sinovac as their main weapon of choice against Covid are very bad indeed

If true, Millions will have been Inoculated with this worthless Vaccine, and Governments will have spent, a fortune on this.

[Isaan sailor]

Given the paltry SinoVac results—could someone in a low-risk group be better off with a mild case of Covid—and thus build up natural anti-bodies?

[placeholder]

 

2 hours ago, smedly said:

depends, we have to remember that all these vaccines were rushed through without proper testing/study which can take years normally 

 

 

For the Western vaccines, animal testing was done. And Phase 1, Phase 2, and Phase 3 protocols were followed.

[MrJ2U]

Its already low or nothing with the Delta variant.

 

The government keeps showing statistics for the original COVID-19, Alpha while the Delta is the dominate strain.  Misleading the public at best.

[Isaan sailor]

6 minutes ago, MrJ2U said:

Its already low or nothing with the Delta variant.

 

The government keeps showing statistics for the original COVID-19, Alpha while the Delta is the dominate strain.  Misleading the public at best.

Anything to delay the arrival of Pfizer/Moderna.

[Destiny1990]

Huh but last month they presented us here a study that this vaccine was 99% effective.

Edited July 14, 2021 by Destiny1990

[cjinchiangrai]

What does the 40% mean though? A vaccine mimics a viral attack so following the shot, I would expect very high levels of antibodies that would drop of to a lower waiting/watching level. The important question would be "what levels are required to recognise a later attack and trigger the production of new antibodies."

 

Without additional information, I would file this as sensationalist journalism.

[Hayduke]

6 hours ago, smedly said:

sinovac is useless

My….what a complete surprise. You would think the nice, hardworking people who engineered this plague in the first place might have put some more thought into how to 'un-engineer' it.

 

 

Edited July 14, 2021 by Hayduke

[DefaultName]

So, not the first choice, but better than nothing.  

[placeholder]

2 hours ago, BE88 said:

 

I agree now but see now J&J and AZ are already developing new vaccines without side effects and 100% effective, wait and see

 

 

Vaccines without side effects? That's going to be a world first. I googled it. Couldn't find anything supporting it. Can you share a link?

[SomchaiCNX]

7 hours ago, Fex Bluse said:

China won't be happy with this kind of information. 

 

Expect 2 or 3 "studies" in the next couple days that suggest the antibodies last for a hundred years. 

 

You mean CP?