Archive for the tag: Coronavirus

How Viruses Like The Coronavirus Mutate

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Genetic mutations aren’t as scary as they sound. With RNA viruses, like the coronavirus (SARS-CoV-2) that causes COVID-19, they’re happening constantly — basically every time it replicates. But not all mutations stick, and not all the ones that stick are bad. In fact, mutations are actually necessary for tracking and containing COVID-19. Here’s how viruses mutate and why you shouldn’t be worried when you hear about them.

MORE CORONAVIRUS COVERAGE:
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Why COVID-19 Death Predictions Will Always Be Wrong

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How Viruses Like The Coronavirus Mutate

This video describes the #immunesystem and explains how it detects and attacks any foreign organism that enters the body.

The immune system has two parts, innate and adaptive. The innate is the first to detect when an organism does not belong to a body and directs the adaptive to tackle the intruder.

The current protocol to control the immune system during a #transplant is immunosuppressant drugs, these drugs paralyse the immune system and prevent it from attacking the kidney but leave the body vulnerable to infection

We learn how the team in the MRC Centre for Transplantation at King’s College London have developed a way to harness the power of the Immune System after a transplant, whilst maintaining the body’s capacity to resist #infectiousdiseases.

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Kidney Perfusion | New Drug to Protect Kidneys From Immune System During Transplant
▶️ https://www.youtube.com/watch?v=Ix378XOomSo

Cutting Edge Biomedical Imaging | MRI Scan of a Person’s Brain
▶️ https://www.youtube.com/shorts/0LupvsT87Ec

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What the coronavirus looks like up close

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Seeing the virus up close helps us understand it.

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The images of SARS-CoV-2, the novel coronavirus that first appeared in humans in late 2019, were made using electron microscopy. The virus measures around 100 nanometers, and the smallest wavelengths of light that humans can see measure around 400 nanometers, meaning the virus is too small to see with a standard light microscope. To see something that small, you need a device that uses smaller wavelengths than light. Electrons, when accelerated in a field, behave as a wave with a tiny wavelength to accomplish this.

Two electron microscopy techniques, SEM and TEM, offer different views. A Scanning Electron Microscope (SEM) scans the surface of a sample and records information that bounces back, similar to a satellite image. A Transmission Electron Microscope (TEM) transmits electrons through a sample and projects a cross section of its inner structure. Together, these images help scientists observe the virus and how it moves in and out of host cells.

Check out Vox’s guide to navigating the coronavirus: https://www.vox.com/2020/3/5/21162138/vox-guide-to-covid-19-coronavirus

Read and see more about how the virus attacks our bodies in this New Yorker article:
https://www.newyorker.com/science/elements/from-bats-to-human-lungs-the-evolution-of-a-coronavirus

Note: The headline for this video has been updated since publishing.
Previous headline: How images of coronavirus are made

Correction: At 4:07, an animation in a previous version of this video implied that antibodies coat the entire cell membrane, when they actually bind to specific proteins on the virus. The error has been corrected..

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Most of us know about viruses, and that they spread disease. But what is a virus exactly? Is it alive? How does it infect a host? There’s a lot to discuss here! Take a look.

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Coronavirus: More health myths to ignore – BBC News

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Lemon juice, mosquito bites and blood donations?

Reality Check’s Chris Morris tackles more myths about coronavirus that are being shared online.

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Watch live: World Health Organization gives coronavirus update

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There are now more than 1,000 cases in the United States – eight times more than just a week earlier. At least 32 people have died of the virus nationwide, and there are cases in 37 states — 15 of which have declared emergencies — and Washington D.C.


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Coronavirus Not Airborne – Public Health Physician

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LIVE: World Health Organization delivers update on coronavirus – February 28, 2020

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