Coronavirus aggressively invades lung cells in chilling new images

The images were published in the New England Journal of Medicine and show how prolific coronavirus can become in a mere four days.

  • COVID-19 is a respiratory disease that spreads through human airways.
  • New images taken with a scanning electron microscope show coronavirus swarming over bronchial cells.
  • The images further stress the importance of preventative measures such as handwashing and wearing a mask in public.
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    Study shows why face shields don’t work as well as face masks

    Some people choose alternatives to masks for comfort. A study shows the difference in effectiveness.

    Credit: Siddhartha Verma, Manhar Dhanak, John Frankenfield
    • A new study provides a visualization of why face shields are ineffective at stopping the spread of COVID-19.
    • Using a mannequin that could simulate coughing, the authors demonstrated how water droplets slide around shields.
    • The authors conclude that shields are not an effective replacement for masks.
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    Does warm weather impact COVID-19?

    Various studies examine the impact of humidity, temperature, rain, and sunshine on COVID-19.

    • Researchers around the world have been working to analyze and understand this virus since the global pandemic started earlier this year.
    • While the first SARS-CoV virus (2003) did not circulate long enough for researchers to distinguish any specific seasonal pattern, daily weather did have an impact on the number of cases.
    • Other studies from China, Australia, Brazil, and the UK take a look at how our weather can impact the transmission of COVID-19.
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    First case of COVID-19 reinfection reported in Hong Kong

    The patient's second infection was asymptomatic, suggesting that subsequent infections may be milder.

    (Photo by Antonio Masiello/Getty Images)
    • A 33-year-old man contracted the virus first in March, then again in August.
    • Researchers at the University of Hong Kong compared the RNA of the two infections, finding them to be distinct.
    • The immune system's response to the coronavirus remains unclear, but recent studies suggest T cells may help to battle subsequent infections even after antibody levels drop.
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    Matt Cardy/Getty Images

    By folding DNA into a virus-like structure, MIT researchers have designed HIV-like particles that provoke a strong immune response from human immune cells grown in a lab dish. Such particles might eventually be used as an HIV vaccine.

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