Tag Archives: Israel data

Why the vaccinated have to keep wearing masks

In the coming days, the leaked information from the CDC is going to be misrepresented by every anti-vaxxer, conspiracy theorist and general nutter in the world, so we will need facts to counter the inevitable surge of crazy. We will also need to understand the implications of this data for ourselves.

Point number 1.

We have to understand that all this data is about the Delta variant. Delta is a mutation of the original Covid19 virus and its an order of magnitude more infectious.

The graphic below [taken from the CDC powerpoint slides] compares various forms of infectious diseases. The higher up a disease is located on the graphic, the deadlier it is. The further to the right it is, the more infectious it is.

As you can see, Delta is not very high up on the graphic – i.e. it’s nowhere near as deadly as say Ebola – but it is a long way to the right. That means it is as infectious as chickenpox. And chickenpox is the second most infectious disease of all.

Point number 2.

All of the current, first generation of vaccines were developed in a mad rush…for the Alpha variant of Covid19 – i.e. the original version of the virus. We’re only now starting to get reliable data about how well these vaccines work against Delta.

Point number 3.

Emerging data shows that none of the current vaccines work as well against Delta as they do against the Alpha [original] variant. When it comes to reducing the severity of disease and the likelihood of death, however, they still work extremely well, with a few exceptions.

Point number 4.

The exceptions include people with compromised immune systems, and the elderly. For them, the vaccines do not work as well. The operative phrase here is ‘as well’. That means people with cancer who are on chemo, or those with autoimmune diseases being treated with immuno-suppressant drugs, or steroids or a whole range of other immune system related conditions, all of these people must continue to take extra precautions. These include the wearing of masks, social distancing, not congregating in crowds, hand hygiene etc.

Point number 5.

Apart from the immuno-compromised, the vaccines do NOT provide 100% protection against infection, even for normal, healthy people who are fully vaccinated.

According to the CDC, 35 thousand fully vaccinated people out of a total vaccinated population of 162 million are likely to get what’s called a breakthrough infection. This is when you become infected despite the vaccine. In percentage terms, this is 0.02% of fully vaccinated Americans spread throughout the US.

Point number 6.

Vaccinated people who get breakthrough infections are still far better off than those with no vaccination at all. The graphic below, also taken from the CDC powerpoint slides, shows a side-by-side comparison of vaccinated versus non-vaccinated people:

The green bars represent the unvaccinated population, and the levels of disease, hospitalization and death that they suffer from Delta.

The small blue bars represent the vaccinated population who experience disease, hospitalization and death as a result of breakthrough infection. It’s like comparing an ant to an elephant.

Point number 7.

In my last post I talked about Israeli data showing that Pfizer protection against transmission – i.e. the chance of infecting others even though you yourself are unaffected – drops to about 39% after four months. CDC data shows that if you are fully vaccinated and get breakthrough infection, you will be just as infectious as someone who has no vaccination at all.

This, more than anything else, is why both the US and the UK have mandated mask wearing again. To protect both the unvaccinated AND the vaccinated.

To put this transmission problem into context, we have to remember that these first generation vaccines were designed to reduce serious disease and death if you caught Covid. No one knew whether they would provide any protection against transmission at all.

Then we started getting data from Israel and other places that suggested that yes, not only did the vaccines protect against serious disease and death, they protected against transmission as well! Hooray.

Unfortunately, we did not have all the data back in January and February, 2021. Now in July, we know that the protection against transmission is temporary, at best.

Point number 8.

The implications of this new data are that we will have to continue all the OTHER pandemic precautions as well as getting vaccinated. That means wearing masks in public, social distancing, stringent hygiene, restrictions on congregating in crowds etc. Not the news any of us want to hear, but still miles better than dying.

There will be deaths though. Most will be amongst the anti-everything crowd who won’t get vaccinated, won’t wear masks, won’t accept lockdowns and other public health orders. Sadly there’s not much anyone can do to save those who refuse to be saved.

Our job is to protect ourselves and those we love by continuing to live cautiously until we see what effect booster shots have on Delta. With luck, the boosters will do the trick. If they don’t, we’ll have to live cautiously until the next generation of vaccines are ready.

We’ve been extraordinarily fortunate to get vaccines so quickly, even if they aren’t a magic bullet against Covid. Now we just need to be sensible…and patient. Covid is not finished with us yet. Stay safe. -hugs-

Meeks

References

For a full list of the powerpoint slides leaked from the CDC go to : https://context-cdn.washingtonpost.com/notes/prod/default/documents/54f57708-a529-4a33-9a44-b66d719070d9/note/753667d6-8c61-495f-b669-5308f2827155.#page=1

For Dr John Campbell’s explanation of the CDC powerpoint slides [this is where I based my own understanding of the data] go to: https://www.youtube.com/watch?v=XsRdICFRHcc


Delta – the virus bomb

On Saturday, July 24, 2021, roughly 3,000 men, women and children marched through my city, demanding ‘freedom’.

Freedom from what? From a lockdown designed to save the mostly unvaccinated population of Melbourne from the Delta variant of Covid19.

Virtually none of those selfish, stupid people were wearing a mask. None of them were ‘socially distancing’. And all of them thought there was ‘no danger’. No danger to them and no danger to the rest of us.

No danger from Delta… -grinds teeth-

I’m not going to rant about those people. Instead, I’m going to address the criminal misinformation they were fed about Covid19:

  1. The first thing to understand is that the virus infecting NSW, Victoria and South Australia now is not the same as the version we fought during the first wave, back in March 2020. It’s a mutation of the virus called ‘Delta’.
  2. Delta is miles more infectious than the original version of Covid because it incubates faster and has a hugely greater viral load.
  3. Delta’s incubation period – i.e. the time it takes for the virus to start infecting others – is roughly half of what happened with the original version. It’s now about 30 hours.
  4. Delta’s viral load – i.e. how much active virus is being manufactured by the body and shed outside the body – is 1260 times more than the original version. Just think about that number for a moment. šŸ˜¦
  5. Delta can also infect via super fine aerosol spray [from just breathing], droplets [heavier drops from say sneezing] and contamination of surfaces [from droplets landing on surfaces and staying active].

Taken all together, this means that many of the things we thought we knew about Covid no longer apply.

We used to think that Covid only spread via droplets and surface contamination. We now know that Delta can and does spread via super fine aerosol spray. That’s how Delta has been escaping from hotel quarantine.

We used to think that children and the ‘young’ were pretty much safe from dying of Covid. Wrong. Recent data from Indonesia shows that children and the young are much more likely to become sick and die if they catch Delta.

We used to think that being outdoors, or in a properly ventilated area would protect us from Covid. We now know that Delta can and does spread outdoors. The spread from the MCG is proof of that. Air circulation does dilute the viral load, but wherever large groups of people come into close contact, spread does occur.

Imagine this, you’re walking along in a crowd of people, completely unaware that the person directly in front of you has Delta. Maybe they don’t know they have it either. As they breathe out and move on, you walk through the air that just came out of their mouths! If you breathe in at that moment, you’re breathing in the Delta virus.

3000 people in Melbourne may have done just that on Saturday, and not just for a few seconds, but for the entire time they marched through our streets. Some of those people are just plain nuts – you would not believe the conspiracy theories being bandied about. Most though, have probably been taken in by the misuse of statistics from overseas.

I saw one tweet on Twitter touting the fact that the percentage of people who died from Covid was tiny, so there was ‘no danger’. Those stats came from the CDC in the US and were totally misleading. The percentage of Covid deaths out of a population of 350,000,000 may be ‘a little number’, but that’s only because there are just 100 numbers in a percentage – from 1 to 100. The number of deaths, however, is huge – over 600,000. That’s over half a million people like you and me.

For those 600,000+ people in the US, the danger was very and very fatal.

The only thing that stops us from facing the same danger is luck. Or lockdowns. I may be a control freak, but know which I prefer.

Getting back to those 3000 people in Melbourne, many were saying they had been fully vaccinated and therefore should not be locked up with the rest of us. I sincerely hope they were vaccinated, because otherwise they could die if they catch Delta. The latest victim was a young woman in her 30s who had no underlying health problems.

But being vaccinated yourself does not mean you can’t be infected by Delta. And it definitely does not mean you can’t pass Delta on to those who are not vaccinated. Recent data coming out of Israel shows that whilst vaccines continue to stop people from becoming sick and needing to be ventilated, their ability to stop transmission of the virus reduces drastically with time.

How drastically? Down to about 39% after 4 months. Four months. That means anyone who is not fully vaccinated will be in danger…from those who are vaccinated…after just four months. And this is data about the Pfizer vaccine! The gold standard for protecting health and reducing transmission.

But the worst news is that Delta may not be the worst variant of Covid we have to face. In Peru, almost all of those with Covid have been infected by a variant called Lambda. And Lambda is spreading out of South America, with cases now found in Texas.

No one knows which variant will prove to be the winner in this war of the viruses, but being vaccinated is no longer the magic bullet we all hoped it would be. In a few years time, Generation XX of the vaccines may stop transmission as well as hospitalisations, but this first generation of vaccines can’t, or at least, it can’t stop transmission permanently.

What does this all mean for us? It means we need virtually 100% vaccination rates – across all age groups, including children. It also means boosters, boosters, and more boosters. And it may mean that wearing masks in certain settings becomes the norm rather than the exception.

But don’t take my word for it. Check out these videos from Dr John Campbell:

And re viral load:

As for the fools marching through our streets on Saturday…I really wish there were a vaccine for stupid. These people actually saw themselves as ‘heroes’ who would be applauded by the rest of us.

Well… 10,000 of the rest of us contacted Crime Stoppers about the protests. Surprise, surprise.

Meeks


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