Cellular (T-cell) immunity against the virus that causes Covid-19 is likely to be present within most adults six months after primary infection, with levels considerably higher in patients with symptoms, a study suggests.#science #medicine #health #Covid-19 #CoronaVirus #pandemic
The data offers another piece of the puzzle that could be key to understanding whether previous Sars-CoV-2 infections – the virus behind Covid-19 – can prevent reinfection, and if so, for how long.
The 3000+ mile border US/#Canada It's stark. MORE https://t.co/GB87cNcSXD" / Twitterhttps://twitter.com/Laurie_Garrett/status/1321627987847139329
Movies that show the experimental setup and the full 85-minute observation of speech droplet nuclei.https://zenodo.org/record/3770559#.X5szhtT7SCP
The full movie recording of highly sensitive laser light scattering observations that indicate loud-speaking generates, in addition to hundreds of regular droplets, also many thousands of micro-droplets per second. This movie clip shows the decay of airborne particles.
They say immunity appears to be fading and there is a risk of catching the virus multiple times.Covid: Antibodies 'fall rapidly after infection'
There are four other human coronaviruses, which we catch multiple times in our lives. They cause common cold symptoms and we can be reinfected every six to 12 months.
Researchers tested a cancer drug called plitidepsin as a coronavirus therapy and discovered it can block the virus’s ability to replicate.https://bgr.com/2020/10/25/coronavirus-treatment-plitidepsin-cancer-drug-spain-trial/
The use of plitidepsin reduced viral loads after just seven days and improved blood test markers for inflammation.
Nearly 40% of a limited group of patients who received various doses of plitidepsin were discharged after just eight days in the hospital.
This is a good riposte to the oft-heard suggestion that most people who fail to follow the rules are degenerate “Covidiots”, and further proof that in a society as insecure as ours, trying to stringently control anything – let alone a highly infectious disease – will tend to be very difficult indeed. According to research done at King’s College London, only 18% of people self-isolate after developing symptoms, and only 11% quarantine after being told by the government’s test and trace system that they have been in contact with a confirmed case. Among the factors the study associates with non-compliance are “lower socio-economic grade”, and “greater hardship during the pandemic”. A lot of people, it seems, would like to do what they are told, but simply can’t.How do you self-isolate if you live in a cramped multi-generational house with one kitchen and one bathroom/toilet, possibly even sharing a bedroom? How do you self-isolate if you live in shared accommodation, again with a shared kitchen and a shared bathroom, while struggling to hold down a job to pay the extortionate rent?
This is the basic point the government does not seem to have grasped – painfully highlighted by Johnson’s claim that infections increased because the public became “complacent”. Threatening people with fines of up to £10,000 if they fail to self-isolate – and, we now learn, passing their details to the police – is an example of the same cast of mind, less likely to persuade people in precarious circumstances to follow the rules than to keep their distance from the authorities. The fact that some people on very low incomes are finally eligible for a lump sum of £500 to cover a fortnight’s quarantine will not solve what is obviously a massive problem; in terms of basic practicalities, it is of a piece with Rishi Sunak’s plan to pay only two-thirds of lost wages to people affected by local restrictions.
There’s a common refrain that masks don’t protect you; they protect other people from your own germs, which is especially important to keep unknowingly infected people from spreading the coronavirus.#science #medicine #health #Covid-19 #CoronaVirus #pandemic
But now, there’s mounting evidence that masks also protect you.
If you’re unlucky enough to encounter an infectious person, wearing any kind of face covering will reduce the amount of virus that your body will take in.
A specialist in biological and chemical warfare has explained why he believes you should never get in a Las Vegas pool, and it's a rollercoaster.#science #health #PSA
Author Dan Kaszeta began his career as a Chemical Officer in the US Army. He then became a defense contractor, working with the Pentagon on chemical and biological proliferation issues. His career spans historical research for the USA's decommissioned chemical and biological weapons programs to training on live nerve agents.
Basically he's got the kind of C.V. that if he says "don't go in that pool" you don't get in that pool.
Coronavirus was brought into the UK on at least 1,300 separate occasions, a major analysis of the genetics of the virus shows.#science #medicine #health #Covid-19 #CoronaVirus #pandemic
The study, by the Covid-19 Genomics UK consortium (Cog-UK), completely quashes the idea that a single "patient zero" started the whole UK outbreak.
The analysis also finds China, where the pandemic started, had a negligible impact on cases in the UK.
Instead those initial cases came mostly from European countries.
People who recover from COVID-19 but test positive for the virus again days or weeks later are not shedding viral particles and are not infectious, according to data released Tuesday by the Korea Centers for Disease Control and Prevention.#science #medicine #health #Covid-19 #CoronaVirus
head of the Bradford Institute for Health Research, and a veteran of cholera, HIV and Ebola epidemics in sub-Saharan Africa.He's also an epidemiologist, which is:
a medical detective, and like all detectives, the three key clues we are looking for are always: person, place and time.https://www.bbc.co.uk/news/health-52589449
So when I got an email out of the blue from a Bradford resident saying that she and her friends may have been infected with Covid-19 in January - nearly two months before the first confirmed case of transmission in the UK - I looked for these clues and decided to investigate further.
Scientists have discovered an antibody which prevents the coronavirus from infecting human cells in "groundbreaking research" which could lead to the development of new treatments.#science #medicine #health #Covid-19 #CoronaVirus
Building on research into the SARS coronavirus, scientists from Utrecht University in the Netherlands, as well as the Erasmus Medical Centre and the company Harbour BioMed (HBM), have identified a potential method of neutralising COVID-19.
They discovered that an antibody which prevents the SARS virus from infecting human cells could also block the novel coronavirus from infecting human cells too, according a peer reviewed study published on Monday in the journal Nature Communications.