International COVID-19 Updates & Discussion 3

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Brawler

Brawler

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quovadis said:
Efficacy is generally measured by cumulative incidence and no, a PCR test would not come out positive unless you are infected with covid. There is no covid in the vaccines whatsoever.
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The Chinese vaccine uses the deactivated corona virus.
 
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Markd

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AdrianH said:
They seem to start off small though. I don't think UK had a single case forge first few weeks, but now there's 70 odd with over 20 million. As it seems more likely to get clots with with younger people, it may be why it initially it seems ok as the older folks are the ones getting the jab.

Now that there's a possible link, more attention is beIng made when people are diagnosed with blood clots and having a covid vaccines. I do wonder though if most vaccines like the flu vaccine for instance has the same risk, but due to the lesser numbers and that it's not being administered by the thousands per day, the link hasn't been made.
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So in younger people the risk of death from COVID doesn't necessarily warrant that tiny risk associated with blood clots from the vaccine. For older people who are more likely to die from COVID (55+) the risk of blood clotting is so small that getting the vaccine still makes sense. There is an extensive article on sciencemag about this which is a good read.

Given that AZ and J&J are really just traditional-type vaccines, I hazard a guess at saying that we probably would see this in other vaccines like the flu vaccine, but the numbers are even smaller there.
 
AdrianH

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Markd said:
So in younger people the risk of death from COVID doesn't necessarily warrant that tiny risk associated with blood clots from the vaccine. For older people who are more likely to die from COVID (55+) the risk of blood clotting is so small that getting the vaccine still makes sense. There is an extensive article on sciencemag about this which is a good read.

Given that AZ and J&J are really just traditional-type vaccines, I hazard a guess at saying that we probably would see this in other vaccines like the flu vaccine, but the numbers are even smaller there.
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Links have been shown that getting infected by Covid and becoming seriously ill increases the risks of blood clots as well. It seems that in rare cases, the body's immune system reaction to both the virus and vaccines can cause blood clots.

So you're damned if you do, and damned if you don't.
 
The_Right_Honourable_Brit

The_Right_Honourable_Brit

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Moderna roll out started in England today. Weird it took so long compared to Pfizer - I'm guessing Moderna has somewhat limited manufacturing capacity compared to Pfizer.
 
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noxibox

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AdrianH said:
Vaccines won't make you test positive for covid. This is because the vaccines don't contain live covid virus. Anybody testing positive likely got infected before or the weeks following their vaccine.

Here's some info

theconversation.com

Will the COVID vaccine make me test positive for the coronavirus? 5 questions about vaccines and COVID testing answered

Even if you're vaccinated, you still need to come forward for COVID testing, even if you have the mildest symptoms.
theconversation.com theconversation.com
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PCR doesn't test for live virus. They are incorrect in claiming that a positive result indicates a current infection.
 
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Rosaudio

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MiW said:
Studies in UK were showing anything between 75-85% reduction in hospitalizations after vaccines, that clearly begs the question what happened with the other 15-25%?

There is no one trial having enough data to claim AZ prevents hospitalizations in the SA mutation cases.
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I believe those figures were after one dose of the vaccine. 85% for Pfizer and around 90%+ for AZ iirc. No data yet on second dose due to the UK only applying second doses throughout this month.

Will be interesting to get the data on other strains.
 
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MiW

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Rosaudio said:
I believe those figures were after one dose of the vaccine. 85% for Pfizer and around 90%+ for AZ iirc. No data yet on second dose due to the UK only applying second doses throughout this month.

Will be interesting to get the data on other strains.
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Israel has some data, but not very sharing on details with the public.
 
Lupus

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MiW said:
Studies in UK were showing anything between 75-85% reduction in hospitalizations after vaccines, that clearly begs the question what happened with the other 15-25%?

There is no one trial having enough data to claim AZ prevents hospitalizations in the SA mutation cases.
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Strange we have the same here in SA with no vaccine?
 
AdrianH

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J&J vaccine rollout delayed in EU over blood clot concerns, US recommend pausing their rollout.

The rollout of the Johnson & Johnson COVID vaccine across Europe has been delayed, while US officials have recommended a "pause" in the use of the jab as reports of blood clots are investigated.

The healthcare giant said on Tuesday it had "made the decision to proactively delay the rollout of our vaccine in Europe".
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news.sky.com

COVID-19: European rollout of Johnson & Johnson coronavirus jab delayed as US officials investigate blood clots

The Johnson & Johnson coronavirus vaccine requires only a single dose, and has been given to 6.8 million people in the US.
news.sky.com news.sky.com
 
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