Study Shows Both Sinovac and AstraZeneca COVID-19 Vaccines Are Effective

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15 hours ago, friendofthai said:

So the studies demonstrates that the Chinese vaccine is more effective (99.4%) than the British one (98.3%).
Great result! Thank you, China, for providing Thailand with such an effective medication.

 

Also, just in the case of those who disparage the vaccine because it comes from China, it makes no sense to thank China for the vaccine. It's a private company that happens to be Chinese. Leave the silly nationalism out of this.

[vandeventer]

15 hours ago, TallGuyJohninBKK said:

 

 

From NPR on April 26:

 

"The United States will release 60 million doses of the COVID-19 vaccine from drugmaker AstraZeneca to other countries over the next several months, the White House announced Monday.

 

The vaccine, which has not been authorized for use in the U.S., will be released once it clears safety reviews by the Food and Drug Administration. That could happen in the "coming weeks," White House press secretary Jen Psaki said at a press briefing.

...

The AstraZeneca vaccine has been widely used across Europe and elsewhere around the world. But the company has not yet applied for emergency authorization in the U.S. The vaccine is reported to be effective at preventing transmission and hospitalization, but the company has faced questions from U.S. regulators about data from its trials."

 

https://www.npr.org/2021/04/26/990930748/u-s-will-share-60-million-doses-of-astrazeneca-vaccine-with-other-countries

 

I read somewhere that the USA gave 60 million doses of AZ to India?

[Jeffr2]

2 minutes ago, vandeventer said:

I read somewhere that the USA gave 60 million doses of AZ to India?

I don't think so.  It's not been approved by the FDA, so they won't allow the export.  Red tape sucks!!

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AstraZeneca: US to share up to 60m vaccine doses

https://www.bbc.com/news/world-us-canada-56893701

[Mr Meeseeks]

Usual incoherent gobbledegook from a state mouthpiece.

[vandeventer]

11 minutes ago, Jeffr2 said:

I don't think so.  It's not been approved by the FDA, so they won't allow the export.  Red tape sucks!!

Your right ,they haven't done it as yet and it will be to a few countries.

 

https://time.com/5958892/us-share-astrazeneca-vaccine-covid-19/

[SmartyMarty]

59 minutes ago, placeholder said:

You may have been talking about it but you provided no evidence to support your contention. Whereas there is plenty of evidence to show that Coronavac is very effective against hospitalization and something called Death. Unless Colombians are significantly different biologically from other humans, it doesn't seem like you have much of a case.

"coronavac?" what are you on about? If you want to find the evidence, there's this wonderful thing called the internet. If you can't do it yourself, may I suggest you move on to the 'special needs' section? 

Edited May 11, 2021 by SmartyMarty

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3 minutes ago, SmartyMarty said:

"coronavac?" what are you on about? If you want to find the evidence, there's this wonderful thing called the internet. If you can't do it yourself, may I suggest you move on to the 'special needs' section?

I wouldn't be at all surprised if you can find courses on remedial reading on the internet.  Do so, posthaste.

This is from my reply:

Whereas there is plenty of evidence to show that Coronavac is very effective against hospitalization and something called Death.

[Jeffr2]

18 minutes ago, placeholder said:

AstraZeneca: US to share up to 60m vaccine doses

https://www.bbc.com/news/world-us-canada-56893701

As I said:

The doses will be able to be exported in the coming months after a federal safety review.

[retsdon]

 This report gives no information about the study itself. The wording is also ambiguous. Before putting the boot into the virology dept at Chula it would be good to hear what the professor actually said about his results rather than reading a report about what he said. The two are not the same thing.

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Just now, Jeffr2 said:

As I said:

The doses will be able to be exported in the coming months after a federal safety review.

Correct. And the vaccines won't all be going to India.

[Dogmatix]

Prof Dr Yong Poovorawan, a senior virologist at Chulalongkorn University, explained that people who get the first AstraZeneca jab had a 98.3% immunity against COVID-19, compared to 99.4% in people who had received the second Sinovac jab and 92.4% in people who had been infected with COVID-19.

 

No evidence cited for these findings.  Dr Yong seems to have already sold his soul to the devil and is not a reliable source for anything.

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7 minutes ago, Dogmatix said:

Prof Dr Yong Poovorawan, a senior virologist at Chulalongkorn University, explained that people who get the first AstraZeneca jab had a 98.3% immunity against COVID-19, compared to 99.4% in people who had received the second Sinovac jab and 92.4% in people who had been infected with COVID-19.

 

No evidence cited for these findings.  Dr Yong seems to have already sold his soul to the devil and is not a reliable source for anything.

Well, we don't actually need Dr. Yong's testimonial. There is plenty of data from elsewhere to show that the AZ vaccine and the Sinovac vaccine are very effective in preventing hositalizations and death.

[skorp13]

So the vaccine they didn't have faith in is now all of the sudden very effective even though it hasn't been changed :). Perhaps vaccination is their only way out of this has something to do with it 555

[phil2407]

So AZ works 1st time 

Chinese vac works only in 2nd time from what I've read 

Just compare the vaccination X 1 - effectiveness

Then compare the vaccines X 2 

Bit sly these Thai saying Chinese vacinnes only after 2nd shot X effective

[club]

18 hours ago, Jeffr2 said:

Good Information

 

Pfizer has always been my choice. Check out how inconsistent Sinovac is. Its trash 

[Gulfsailor]

Dr Yong looked at the immunogenicity, not the efficacy of these vaccines.

 

Efficacy is determined based on how many vaccinated people get a (symptomatic) disease compared to those who didn’t get the vaccine. This is a study in the real world, with many factors effecting the outcome, which are difficult to compensate fully for. Hence it is so difficult to compare vaccines.

Immunogenicity is a study in the lab, where one checks if seroconversion is reached at vaccinated subjects. In other words, are there a significant amount of antibodies found and has immunity been reached. This does not mean that these people can’t get infected. It means once infected the immune system is ready to fight it off, resulting in less severe symptoms and outcomes. The question remains of how strong the immune response is needed to successfully fight an infection early on, as the body doesn’t have a lot of time to build its own natural immune response to the virus due to the short incubation time. 

[Jimbo2014]

20 hours ago, placeholder said:

Can you share with us the reinfection rate?

 

No - there is a bloomberg article from about 30 days ago which noted that the vaccine only just passes WHO minimum standards, that re-infection rates are unknown, and that the four country case studies have  'wildly different results'.  You can read about it here.  https://www.bloomberg.com/news/articles/2021-04-13/are-china-s-covid-shots-less-effective-experts-size-up-sinovac  

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6 minutes ago, Jimbo2014 said:

 

No - there is a bloomberg article from about 30 days ago which noted that the vaccine only just passes WHO minimum standards, that re-infection rates are unknown, and that the four country case studies have  'wildly different results'.  You can read about it here.  https://www.bloomberg.com/news/articles/2021-04-13/are-china-s-covid-shots-less-effective-experts-size-up-sinovac  

The studies may show very different results for efficacy/effectiveness. But as the article notes:

"The Sinovac study was to look at how the vaccine works against the entire range of clinical symptoms, from mild infections to severe ones, including death. The efficacy data of about 50% is for very mild disease, requiring no treatment. For infections requiring some medical intervention, it’s about 84% and for moderate-to-severe Covid cases, it’s 100."

[placnx]

3 hours ago, Jeffr2 said:

I don't think so.  It's not been approved by the FDA, so they won't allow the export.  Red tape sucks!!

The irony is that dangerous chemicals no longer allowed in the US can still be produced there and exported.

[friendofthai]

7 hours ago, Jeffr2 said:

Buy why are China and Russia holding back data?  If they released it, more countries would buy them.

Demand greatly exceeds supply now. So resolving production problems are much more important for China and Russia now.

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1 minute ago, friendofthai said:

Demand greatly exceeds supply now. So resolving production problems are much more important for China and Russia now.

It's true. China has been very slow in vaccinating its own population. And doesn't seem to have much use for vaccines from companies outside of China:

China's vaccine nationalism softens as country signals it may approve foreign-made shots

Last month, Beijing issued a new policy making it easier for foreigners to apply for a visa to China if they had received a Chinese vaccine -- raising concerns among experts, who warned it risked setting a dangerous precedent which could leave the world separated into vaccine silos.

There was also a practical problem: in many countries, including the United States, it is impossible to get a Chinese vaccine because they have not been approved for use by regulators.

With about half of adults in the US having received at least one Covid-19 shot, many travelers eligible to enter China -- either Chinese citizens or foreigners who managed to obtain a visa -- were left unsure whether the vaccine they received would be deemed sufficient to travel to China.

https://edition.cnn.com/2021/04/21/china/china-covid-football-mic-intl-hnk/index.html

[xtrnuno41]

It doesnt matter which vaccine, you STILL van have covid !

Only symptoms gets less. Already proven in my country.

[Jeffr2]

1 hour ago, friendofthai said:

Demand greatly exceeds supply now. So resolving production problems are much more important for China and Russia now.

OMG. Ya gotta be kidding me. But based on your posts, this makes sense coming from you.

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41 minutes ago, xtrnuno41 said:

It doesnt matter which vaccine, you STILL van have covid !

Only symptoms gets less. Already proven in my country.

I guess the fact of a lot less deaths is unimportant.

[friendofthai]

5 hours ago, Jeffr2 said:

OMG. Ya gotta be kidding me. But based on your posts, this makes sense coming from you.

Seriously, after the recent success of Sputnik V in San Marino, we would expect a huge sales growth. But the production problems are not yet resolved.

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8 hours ago, club said:

Pfizer has always been my choice. Check out how inconsistent Sinovac is. Its trash 

No, it's comments like yours that are trash. We have many many studies done outside of China that show that Sinovac is very effective at preventing symptoms serious enough to require hospitalization and at preventing death. Stop with the falsehoods already if for no other reason than you're committing a crime.

[Jeffr2]

10 hours ago, friendofthai said:

Seriously, after the recent success of Sputnik V in San Marino, we would expect a huge sales growth. But the production problems are not yet resolved.

San Marino?  Come on.  Give me a break.  Does anyone even live there?  If so, not many for sure.

[CharlieH]

2 minutes ago, Jeffr2 said:

San Marino?  Come on.  Give me a break.  Does anyone even live there?  If so, not many for sure.

33,000 is population.

[Jimbo2014]

19 hours ago, placeholder said:

The studies may show very different results for efficacy/effectiveness. But as the article notes:

"The Sinovac study was to look at how the vaccine works against the entire range of clinical symptoms, from mild infections to severe ones, including death. The efficacy data of about 50% is for very mild disease, requiring no treatment. For infections requiring some medical intervention, it’s about 84% and for moderate-to-severe Covid cases, it’s 100."

 

I thought your comment was relating to 're-transmission' - You will note that retransmission is unclear.