vaccine from uk

[rodknock]

how come they do not give front line workers the astra zeneca for 3rd. shot booster that was given to the country by the UK.

oh, i forgot the pfizer is a better vaccine and they will use the donation from the U.S. for front line booster shots.

how come they do not use sinovac for 3rd. shot booster, it was touted as the hottest vaccine.

[Puccini]

I don't know and do not want to speculate.

[internationalism]

sinovac is inactivated, similar to astra.

thailand has approved mixing them when it transpired, that sinovac is ineffective against delta.

Now it also looks like astra is not good against delta as expected.

 

pfizer is mrna, different technology.

Mixing and matching is the best way of protection against different strains

[partington]

5 hours ago, internationalism said:

sinovac is inactivated, similar to astra.

thailand has approved mixing them when it transpired, that sinovac is ineffective against delta.

Now it also looks like astra is not good against delta as expected.

 

pfizer is mrna, different technology.

Mixing and matching is the best way of protection against different strains

For god's sake! The Astra Zeneca vaccine is NOT an inactivated SARS-CoV-2 vaccine, and has no similarities at all with the Sinovac vaccine.

 

The Astra vaccine is an adenovirus causing cells to express the spike protein of the SARS-CoV-2, which then acts as the antigen that the immune system detects and raises antibodies to.

 

The Sinovac vaccine is a preparation of the whole SARS-CoV-2 virus, which is  inactivated and injected as the antigen.

 

They are completely different in every respect.

 

Be accurate!

Edited August 7, 2021 by partington

[richard_smith237]

6 hours ago, internationalism said:

sinovac is inactivated, similar to astra.

thailand has approved mixing them when it transpired, that sinovac is ineffective against delta.

Now it also looks like astra is not good against delta as expected.

 

pfizer is mrna, different technology.

As Partington wrote - AZ and Sinovac are different types of vaccine which trigger the immune response in different ways.  

 

Comments like this are useless without information.... 

 

[“Astra(Zenica) is not good against delta as expected”] that depends what you are expecting !!!! 

 

AstraZeneca is reported to be 67% effective against the Delta variant, whereas Pfizer is 88% (obviously numbers will vary between reports). 

 

But... 67% is a lot better than ‘no vaccine’ (or Sinovac, which in the absence of anything else is still better than nothing and someone could still boost with a better vaccine soon after if one is available). 

 

 

6 hours ago, internationalism said:

Mixing and matching is the best way of protection against different strains

More and more evidence supporting this. 

 

[it is what it is]

1 hour ago, richard_smith237 said:

As Partington wrote - AZ and Sinovac are different types of vaccine which trigger the immune response in different ways.  

 

Comments like this are useless without information.... 

 

[“Astra(Zenica) is not good against delta as expected”] that depends what you are expecting !!!! 

 

AstraZeneca is reported to be 67% effective against the Delta variant, whereas Pfizer is 88% (obviously numbers will vary between reports). 

 

But... 67% is a lot better than ‘no vaccine’ (or Sinovac, which in the absence of anything else is still better than nothing and someone could still boost with a better vaccine soon after if one is available). 

 

 

More and more evidence supporting this. 

 

 

67% efficacy is fine by me, but the moral of the story is that even if you have been vaccinated continue to take sensible precautions; wear a mask in crowded indoor places, sanitise and wash hands regularly and social distance.