Public Health Ministry Insists on Efficacy of CoronaVac (Sinovac) Vaccine

[webfact]

 

By Subhabhong Rarueysong

   

BANGKOK (NNT) - The Ministry of Public Health has insisted that CoronaVac, developed by Chinese company Sinovac, could protect people against Covid-19, despite a claim that a man who received the jab had not developed any immunity.

 

Department of Medical Science (DMS) Director-General Dr Supakit Sirilak said the immunity develops two weeks after vaccination. However, the level of immunity differs based on the virus variants.

 

He said anyone wanting to check the efficacy of their jabs should only have their immunity checked by standard laboratory tests with a proven method. He also quoted research of CoronaVac’s efficacy in Chile showing that the level of immunity increased by 47.8% when tested 14 days after two shots but was as high as 95.6% after 70 days.

 

Dr Supakit said Sinovac’s vaccine performed best with a level of immunity at 114 against the original strain from China’s Wuhan.

 

-- © Copyright NNT 2021-04-19

 

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[faraday]

Ok then, start mass vaccinations. 

 

 

[ThailandRyan]

20 minutes ago, webfact said:

Director-General Dr Supakit Sirilak said the immunity develops two weeks after vaccination. However, the level of immunity differs based on the virus variants.

Are they having all who have been given the sinovac vaccine take a Tither test to see if the levels are sufficient or if they need a booster, and are they also testing them to see if they have the proper antibodies built up within 2 weeks.  Unless they are doing this then how in gods given name can he make the statements he does.  Please show us the testing statistics showing the proof your trying to pass on good Dr. The last sentence I quoted speaks gobs of uncertainty.

 

Dr., your quoting efficacy from Sinovacs own study, but you need to do your own.  

Edited April 19, 2021 by ThailandRyan

[PatOngo]

I would trust the Sinovac gunk as much as I trust the government or the communists that provide it!

 

 

[ParkerN]

Just now, webfact said:

The Ministry of Public Health has insisted that CoronaVac, developed by Chinese company Sinovac, could protect people against Covid-19, despite a claim that a man who received the jab had not developed any immunity.

 

Surely the question ought to be "ïf SinoVac were as ineffective as some claim, would these people say so, bearing in mind who'll be making money from it?"

 

Thought not.

 

[Jessi]

3 hours ago, webfact said:

He also quoted research of CoronaVac’s efficacy in Chile showing that the level of immunity increased by 47.8% when tested 14 days after two shots but was as high as 95.6% after 70 days.

Things are not looking good in Chile.

https://www.bbc.com/news/world-latin-america-56731801 

[Cake Monster]

3 hours ago, webfact said:

BANGKOK (NNT) - The Ministry of Public Health has insisted that CoronaVac, developed by Chinese company Sinovac, could protect people against Covid-19, despite a claim that a man who received the jab had not developed any immunity.

A whole Country called Chile has not developed any Immunity from this CCP Soup.

[Bkk Brian]

Yet deaths in Chile from covid are rising. The Chilean University study on real life data gave a far more negative take than the official statement

[Bkk Brian]

But the study by the University of Chile also found that one dose of the Sinovac jab was only 3 per cent effective against infection, underscoring the need to get fully vaccinated. Efficacy rises to 27.7 per cent within two weeks after the second jab, reaching 56.5 per cent a fortnight later, according to the university.

 

https://www.scmp.com/news/china/science/article/3128886/chile-covid-19-vaccination-drive-adds-sinovac-efficacy-data

[placnx]

45 minutes ago, Bkk Brian said:

But the study by the University of Chile also found that one dose of the Sinovac jab was only 3 per cent effective against infection, underscoring the need to get fully vaccinated. Efficacy rises to 27.7 per cent within two weeks after the second jab, reaching 56.5 per cent a fortnight later, according to the university.

 

https://www.scmp.com/news/china/science/article/3128886/chile-covid-19-vaccination-drive-adds-sinovac-efficacy-data

Efficacy at 57% means a lot of failures, so the virus will still have a high enough R number to make for lockdowns in spite of the entire population having been vaccinated!!! Then what is the point? Sure, hopefully there will not be too many fatalities, but the possibility of an even worse variant emerging through selective pressure means that the Sinovac vaccination campaign may have been a waste of resources. 

[Bkk Brian]

12 minutes ago, placnx said:

Efficacy at 57% means a lot of failures, so the virus will still have a high enough R number to make for lockdowns in spite of the entire population having been vaccinated!!! Then what is the point? Sure, hopefully there will not be too many fatalities, but the possibility of an even worse variant emerging through selective pressure means that the Sinovac vaccination campaign may have been a waste of resources. 

In addition the UK variant is in Thailand, Sinovac has never had a trial or real world data on this so its very likely the 57% will be reduced.

[owenm]

A couple I know from Bang Yai in Nonthaburi have now both had their two Covid vaccines. The wife of the couple, 58yo had Sinovac with 14 days between the 2 doses. Her hubby, 70yo had the AstraZeneca jabs. His 2nd dose was today, and exactly 14 days after his initial dose. 

 

Worldwide, and also checking on Google, other countries are giving the 2nd AstraZeneca jab from 8-12 weeks after the first to increase the efficacy to 94%. With only a 2 week space between doses the efficacy reduces to around 67%.

Has anyone else noted this 14 day between doses being given to AZ recipients, the same as Sinovac? If this is occurring in Thailand wide spread, it is a worrying concern.. 

[Kaoboi Bebobp]

Go to the 13-minute mark in Dr. Campbell's presentation. He deals with the rising case numbers. It is believed some public safety policy errors were made, according to one Chilean doctor, before the summer travel season. Blame for the new spike has been divided into  several factors:

 

Pandemic fatigue

Summer vacation travel

Variants

Chinese vaccine [big question]

 

But there's much more to hear on the video. Still, the Coronavac does leave one under-impressed on a number of levels, except that after two doses, it does seem to reduce hospitalizations and fatalities.

 

Lots of data to come over the coming months from all corners of the planet and all vaccines, however. 

[holy cow cm]

Maybe the efficacy from the makers is the desired result. 

[shadowofacloud]

The key point here is that you cannot compare the efficacy of different vaccines, as it was measured during different clinical trials, which means radically different cohorts, different stages of the pandemic and multiple other factors that we may not even be aware of.

 

So the whole discussion about one vaccine being better than the other is completely pointless, when comparing just the efficacy. Look at "preventability" of hospitalizations and deaths, adaptability to new strains, possible side effects and, last but not least, availability.

 

At this stage, in this part of the world, it's best to get vaccinated with whatever is available. You can always get another vaccine in 6 or 12 months, once there is more data and more options are available. If the efficacy is above 50%, it is good enough, end of story.

Edited April 19, 2021 by shadowofacloud

[ThailandRyan]

As I said in an earlier post, in order to find the antibodies a person will have after being vaccinated the parties vaccinated need to have their tither levels checked to see what types of antibodies and what those levels might be.  Much like the Hep B vaccine many people after being inoculated needed a booster after 6 months while others were at the levels science had deemed proficient.  Testing to see if antibodies is just one of a couple of tests that can be undertaken, but they do cost money ergo why Thailand probably is relying on study and clinical trial results.  Everyone is different and everyone's body reacts differently to vaccines.  Immune systems may be partly responsible, and then again who really knows.

 

Was in Boots' pharmacy this evening and within 10 minutes of each other 3 westerners came in looking to buy Vitamin D and Vitamin C, and the clerical staff told them they had run out this afternoon as everyone was buying it.  

 

[shdmn]

Any vaccine is better than no vaccine.   Even it the efficacy is really low it could still be enough to save your life or prevent some of the severe long term complications like heart and lung damage. There is also some evidence it may increase risk of stroke, Parkinsons, and Alzheimer's.

 

Don't asking me for links if you can't be bothered to google it yourself.

Edited April 19, 2021 by shdmn

[MrJ2U]

The Chinese government slipped up and admitted that Sinovac was disappointing in its effeciency rate and it needs work.  Anutin the resident idiot keeps pushing it though, definitely has self interest in it.

[shdmn]

12 minutes ago, MrJ2U said:

The Chinese government slipped up and admitted that Sinovac was disappointing in its effeciency rate and it needs work.  Anutin the resident idiot keeps pushing it though, definitely has self interest in it.

A 50% efficacy like Sinovac or whatever is still better than nothing given the current crisis.  The time for being picky is when the world is awash in vaccine supply.  Now is not that time.

Edited April 19, 2021 by shdmn

[MrJ2U]

12 minutes ago, shdmn said:

A 50% efficacy like Sinovac or whatever is still better than nothing given the current crisis.  The time for being picky is when the world is awash in vaccine supply.  Now is not that time.

The time for being picky was over one year ago.  People are tired of the excuses.

[RichardColeman]

 

6 hours ago, Bkk Brian said:

But the study by the University of Chile also found that one dose of the Sinovac jab was only 3 per cent effective against infection, underscoring the need to get fully vaccinated. Efficacy rises to 27.7 per cent within two weeks after the second jab, reaching 56.5 per cent a fortnight later, according to the university.

 

https://www.scmp.com/news/china/science/article/3128886/chile-covid-19-vaccination-drive-adds-sinovac-efficacy-data

With respects, that link is to the South China Morning Post - who wiki describe as :

 

Since the change of ownership in 2016, it has been alleged to be on a mission to promote China's soft power abroad. According to critics, it is moving away from independent journalism and pioneering a new form of "propaganda".

 

If you wish to believe 'that' paper then that is your choice.

[galt1967]

While Sinovac is 'better than nothing', the director of the Chinese Center for Disease Control and Prevention, has stated its (relatively) low efficacy.

 

https://apnews.com/article/china-gao-<deleted>-vaccines-offer-low-protection-coronavirus-675bcb6b5710c7329823148ffbff6ef9

 

 

[Kenneth White]

With the COVID pandemic these vaccines were produced in record time so whichever vaccine you get they all have certain levels of effectiveness. We have all become guinea pigs so pick your poison wisely.

[Bkk Brian]

8 hours ago, RichardColeman said:

 

With respects, that link is to the South China Morning Post - who wiki describe as :

 

Since the change of ownership in 2016, it has been alleged to be on a mission to promote China's soft power abroad. According to critics, it is moving away from independent journalism and pioneering a new form of "propaganda".

 

If you wish to believe 'that' paper then that is your choice.

Possibly correct but if they are in a new form of propaganda then its against their own Chinese developed Sinovac, they are quoting the Chilean University that was less than complimentary on the vaccine

[Darkside Gray]

And China has already said it is not 60% effective, who is pulling his chain!

[placnx]

On 4/19/2021 at 5:51 PM, Bkk Brian said:

In addition the UK variant is in Thailand, Sinovac has never had a trial or real world data on this so its very likely the 57% will be reduced.

I read that the upsurge in Chile happened because people dropped their guard after the first dose of Sinovac. They haven't gotten hit by the Brazil P.1 yet, apparently.

[placnx]

On 4/19/2021 at 6:10 PM, owenm said:

A couple I know from Bang Yai in Nonthaburi have now both had their two Covid vaccines. The wife of the couple, 58yo had Sinovac with 14 days between the 2 doses. Her hubby, 70yo had the AstraZeneca jabs. His 2nd dose was today, and exactly 14 days after his initial dose. 

 

Worldwide, and also checking on Google, other countries are giving the 2nd AstraZeneca jab from 8-12 weeks after the first to increase the efficacy to 94%. With only a 2 week space between doses the efficacy reduces to around 67%.

Has anyone else noted this 14 day between doses being given to AZ recipients, the same as Sinovac? If this is occurring in Thailand wide spread, it is a worrying concern.. 

I would like to know the shortest time tried between Sinovac jabs, since it is ineffective after the first one. Is 14 days the minimum?

[SmartyMarty]

Liar liar pants on fire