Showing posts with label virus. Show all posts
Showing posts with label virus. Show all posts

Friday, 17 April 2020

CIVID-19: Key Worker Tests: Utter Stupidity.

Just received the email from the care quality commission about key workers self-isolating and who is eligible to get a test.

First off is the stupidly low number of test centres. They are:

Greenwich
Gatwick
Stanstead
Worcester
Midlands Metropolitan.

So, bit of a bugger if you're in Bristol or Keswick. You've got a very long drive. If you can drive. If you live in Cumbria, Northumberland, even in Devon, Lancashire or Yorkshire, you're going to be in the car for hours getting to the test centre. Maybe it's just a London virus and nowhere else in the country?

Second, the key worker is only tested if they or a member of their household is symptomatic.

Third, only workers in registered care homes are eligible for testing. No testing for workers in any other form of care like domiciliary care or supported living. The carers are going into these people's homes on a daily basis, in some cases shared accommodation that are just like registered homes, but don't require registration. #loophole.

We already know and have known for weeks that people can be spreading the virus without any symptoms. Figures out of China suggest that fourth fifths of those infected can be infected and asymptomatic, waiting for symptoms to occur is waiting way too late.

So really carers need to be tested on a regular basis to establish their viral status. Relying on symptoms emerging is bolting the door after the horse has bolted.

Key workers need to be tested either weekly or fortnightly regardless of symptoms. That way any asymptomatic spreaders can be removed from the system before they infect anyone they care for.

The CQC should have access to the latest covid-19 information, so they should know about asymptomatic spreaders and should update their policy to cope. It should have been updated at least 4 weeks ago when it was known that people can transmit the virus without symptoms.

As it is the advice looks like it was typed up two months ago, the test centres are too few and large swathes of the care sector are not included.

It's piss poor and should be better. People will die as a result of this, there can be no other outcome.

Tuesday, 3 March 2020

Novel Corona Virus 2019: The Lack of Positive Action May Condemn us All.

Okay, I accept that NCOVID-19 is a new "novel" virus in the Human herd. Given that it's a new virus that hasn't been in humans before and the fact that we know absolutely nothing about how it works in the human population I find that the World Health Organisation and Governmental responses around the World to be woefully inadequate.

This is a new virus and the full effects are not know. What we are learning about the virus we are learning while it infects people around the world. This is not a good place to be observing the effects of the virus, mainly from the point we do not know if we can control it, what the long-term effects are and on top of that the more people it infects, the more chance it has to mutate and become more deadly. It could also become less deadly, but we always assume and plan for the worst case scenario: if it has a chance of getting more deadly, then plan and act for that.

So, first of all, what DO we know about NCOVID-19?

1. It is highly infectious. Unlike other serious viruses that are transmitted by contact and therefore limited in their ability to spread, NCOVID-19 is transmitted through the air by droplets. So by sneezing and coughing, the same as a cold or flu. It can also be transmitted by surface contact, so if you touch a surface touched, sneezed on or coughed on by an NCOVID-19 carrier.

2. Like a cold, it is re-infectious. If you get it once, you do not build up an immunity. Instead you can catch it again. And again. A lady in Japan that was infected and then tested as negative then ended up with a second infection. It's not understood how she was re-infected or if the tests were false negatives, but that case alone presents serious questions about the virus.

If the lady was in quarantine, how was she re-infected?
If she went home was she re-infected from a contaminated surface?
If so, how long does the virus last on a surface?
If she tested negative, was the test adequate or accurate?
Does the virus stay dormant in the body and allow false negative tests?
If it does stay dormant, for how long?

3. It tends to have a quite flat mortality rate. It will kill anyone at any age. The only predispositions to the effective mortality is an underlying medical condition. Heart disease, lung disease, diabetes, that sort of thing. The diabetes is a surprise given that it's not a disease of the heart and lungs. The mechanism for that might take a while to understand.

And that's about it.

What we don't know about the disease is a lot bigger.

1. What is the true incubation period? Experts are sticking to 14 days, but there is anecdotal evidence that incubation can stretch to 24 days. If that's the case then current quarantine periods are inadequate. Especially if the virus can go dormant and re-emerge.

2. How easily can it be transmitted? The government is saying "wash your hands" which is fine for contact-spread viruses, but not an airborne virus.

3. If washing hands is recommended, how long does the virus survive outside the body? Experts are making guesses, but no one has come out with a definitive figure. I assume if China are burning bodies rather than burying them, the virus stays infectious for a while. If the UK government is saying wash your hands it would appear at face value the virus can last a while outside a host.

4. What affects are there from being infected? Rumours are that patients end up with cardio-vascular or pulmonary issues which then increase the mortality of the second infection. Details are very scant at best, which seems to point to a pretty bad  outcome.

5. How does a person test positive, then negative, then positive again? Does the virus lie dormant? If it does, what triggers re-emergence? Can it lay dormant for a while without symptoms and emerge weeks later?

If I was the government, I'd have put those exposed to NCOVID-19 in quarantine and kept them there until we had more information about the virus. Separated into small groups the chance of cross-infection would be minimised, but really they need to be kept away from the population at large until we are sure it's safe.

The government need to be more forthright and pro-active on this. They need to be supporting sufferers financially.

The current policy seems to be akin to crossing ones fingers and hoping for the best. It is not a pro-active policy aimed at reducing the risk to the population at large. When dealing with something that is so infectious and so new, the "suck-it-and-see" policy just won't wash. This virus is less than three months old but it has already infected hundreds of thousands and killed many thousands. This is not a trivial thing.

Watching the spread of the disease, learning about it while it infects thousands of people across the globe is certainly not the way to do things like this.

Viruses have the ability to spontaneously mutate. They pick up attributes from other viruses in the hosts. The more people get infected with NCOVID-19 the more chance there is of a mutation picked up by the virus that makes it more deadly, harder to stop or impossible to vaccinate against.

What starts out as a mainly benign virus can be something else entirely by the time it's spread around the world. There is absolutely no guarantee that something as new as this will stay the same once it's infected the whole of humanity.

I'm watching the progress of the virus intently.

The government's response is to tell people to wash their hands and wait to see how deadly the thing becomes. After all they have bunkers to retreat to (as long as they don't take an unsuspectingly infected individual along with them).

Well, humanity will be okay if we all die off. Once there are no more hosts to infect and they and the virus die out, the descendants of the population of North Sentinel Island will have a whole planet to inherit.

It's happened before; humanity has weathered catastrophies before. Scientists are now coming to agree that there was a great catastrophe 11-12,000 years ago that wiped out a significant portion of the population. Male DNA has a big reduction in diversity around that time a significant proportion of the male population died off. The females, safe in their caves were able to survive with less trauma to the ancestral record.

The what, why and where of the catastrophic reduction in world population is still being hotly debated. The theories that there was at least one advanced civilisation around at that time are currently fringe. But so were the theories about the catastrophe that wiped out a huge chunk of the world population. before we could read the DNA data in our bodies.

As a race, humanity will survive, it always has. Whether you or I survive is something entirely different.

Tuesday, 8 September 2009

Another Virus-Cancer link

From the BBC website: "Scientists have produced compelling evidence that a virus known to cause cancer in animals is linked to prostate cancer in humans."

Before the HPV-cervical cancer link was found, I often remarked that the cause of cancers would probably turn out to be a particularly simple mechanism. I may be proved right.

These cancer-triggering viruses could have been in the environment for centuries or even longer and its only now, as population density increases, that the viruses are finding enough hosts to make a marked impact on mortality rates.

Cold comfort for cancer sufferers to know that you're part of natural selection at work though.