A doctor sneezed, sang, talked & coughed toward an agar culture plate with and without a mask.


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A doctor sneezed, sang, talked & coughed toward an agar culture plate with and without a mask.



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27 Comments

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  1. When my son was in grade school it was time for the science fair, I work in a hospital so I figured I’d grab some blood agar plates and bring them home and let him figure out what he was going to culture.

    He swabbed the bathroom sink, the insides of our mouths, tried a hand print and we put them in a warm dark part of the house for 48 hours.

    The results were wild, never thought that much stuff was around us all the time and he did great at the science fair.

    Now he’s a director of environmental health and safety, I like to think doing that single experiment as a kid sent him down that route.

    Also wear a mask, it’s that simple.

  2. So can someone explain the concept of “viral load”. As it pertains to COVID-19, I have heard people suggest that wearing a mask can reduce the viral load of SARS-cov-2, making any infection easier to overcome. I honestly did not know there is such a thing as catching “a little COVID-19”. I was under the impression all it takes is one of those little fuckers to get in your nose or mouth and it can turn into COVID-19. Does the amount really matter?

  3. Before people think that masks are going to grow bad bacteria that you breathe in, take note of 2 things:

    * Bacteria need nutrients to grow, a mask is devoid of most nutrients
    * Most of the bacteria on the inside of the mask were your bacteria to begin with. You had and still have them in you

  4. It would be more interesting if we knew the type of mask, distance from agar samples during testing and the amount of time each sample was cultivated for.

    EDIT: Oh yeah: Bacteria are not viruses. Bacteria are giants when compared to viruses. Viruses can slip through most masks short of surgical masks.

  5. Ehh I have a medical background and this is seriously simplified. Why can of mask, distance etc… Also viruses and bacteria act different and are very different sizes.

    Typical reddit will grab anything and twist the context to try and shame people. Yes, wear a mask but not all masks are equal. So many variables come into play. The world is not black/white. It’s far more complex.

  6. My experience only goes as far as a few microbiology classes in college, but aren’t these swabbed? I’m looking at the squiggly pattern of the examples on the right.

  7. I don’t 100% understand how a mask is only to protect others so for a visual representation, I’d love to see this done where the petri dish is covered with a mask, and the process repeated.

  8. The only issue is that most people who don’t wear masks aren’t doing so because they believe they’re ineffective, they don’t wear masks because they’re selfish narcissists who would rather put others at risk than be slightly inconvenienced by wearing a nose and mouth cover

    We live in the worst timeline

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