Experimento demuestra eficacia de mascarillas para evitar la covid-19


TOKIO, Japón.- Un equipo de la Universidad de Tokio ha demostrado con un experimento cómo pueden prevenir las mascarillas faciales el contagio del nuevo coronavirus aunque con una protección algo menor en el caso de las de tela frente a las quirúrgicas.

Según declaró a la cadena pública de televisión NHK Yoshihiro Kawaoka, del Instituto de Ciencias Médicas de la Universidad de Tokio, no ha habido previamente otros experimentos parecidos trabajando con virus reales.

La prueba se realizó con un simulador de infección del virus SARS-CoV-2 usando dos cabezas de maniquíes colocadas frente a frente dentro de una vitrina, una de ellas con un nebulizador descargando el virus y la otra dotada de un ventilador imitando la respiración humana.

Con el emisor descubierto, el receptor que estaba protegido con una mascarilla de tela tuvo una reducción de entre el 20 y el 40 % en la absorción de virus y de entre el 47 y el 50 % con una mascarilla quirúrgica común.

En cambio, con una N95 colocada apropiadamente la reducción fue de entre el 79 y el 90 %.

Cuando al emisor le colocaron una mascarilla, de tela o quirúrgica desechable, el contagio del receptor, que estaba descubierto, se redujo en más del 70 % en ambos casos, mientras que con la N95 colocada apropiadamente se alcanzó casi el 100 %.

De cualquier forma, Kawaoka, jefe del equipo que realizó el experimento, advirtió de que el uso de mascarillas no evita completamente la infección con el virus.

«Lo importante es no fiarse demasiado de las mascarillas», agregó.


  1. Hey there! I’m at work browsing your blog from
    my new apple iphone! Just wanted to say I love reading through
    your blog and look forward to all your posts! Keep up the great work!

  2. Neat blog! Is your theme custom made or did you download it from somewhere?
    A design like yours with a few simple adjustements would really
    make my blog shine. Please let me know where you got your theme.
    Thank you

  3. Wow, superb blog layout! How long have you been blogging for?
    you made blogging look easy. The overall look of your website is magnificent,
    as well as the content!

  4. I think this is among the most significant info for me.
    And i’m glad reading your article. But should remark on some general things, The site style is wonderful,
    the articles is really great : D. Good job, cheers

  5. I like the helpful information you provide in your articles.
    I’ll bookmark your blog and check again here frequently.

    I’m quite sure I will learn many new stuff right here! Best of luck
    for the next!

  6. Whoa! This blog looks just like my old one! It’s
    on a totally different subject but it has pretty much the same layout and design. Superb choice of colors!

  7. I’m extremely pleased to discover this web site.
    I wanted to thank you for ones time for this particularly fantastic
    read!! I definitely liked every little bit of it and I have you book marked to check out new stuff on your

  8. Somebody essentially help to make severely articles I’d state.
    This is the first time I frequented your web page and so far?
    I amazed with the analysis you made to make this particular
    put up incredible. Wonderful activity! scoliosis surgery https://0401mm.tumblr.com/ scoliosis surgery

  9. I don’t know if it’s just me or if perhaps everybody else
    experiencing problems with your site. It seems like some of the written text on your posts are running off the screen. Can somebody
    else please comment and let me know if this
    is happening to them too? This might be a issue with my internet browser because I’ve
    had this happen previously. Many thanks quest bars https://www.iherb.com/search?kw=quest%20bars quest bars

  10. Hi there just wanted to give you a quick heads up. The text in your
    content seem to be running off the screen in Opera. I’m not sure if this
    is a formatting issue or something to do with internet browser compatibility but I figured I’d post to let you know.
    The style and design look great though! Hope you get the
    issue fixed soon. Kudos scoliosis surgery https://coub.com/stories/962966-scoliosis-surgery scoliosis surgery

  11. I’ve read some excellent stuff here. Definitely price bookmarking for revisiting.
    I wonder how a lot effort you set to make this type of wonderful informative
    web site.

  12. After looking over a few of the blog articles on your
    blog, I truly appreciate your technique of writing a blog.
    I saved as a favorite it to my bookmark webpage list and will
    be checking back soon. Please check out my website too
    and tell me what you think.

  13. I was recommended this website by my cousin. I am not sure whether this
    post is written by him as no one else know such
    detailed about my problem. You are amazing!

  14. Thanks for ones marvelous posting! I certainly
    enjoyed reading it, you might be a great author.I will be
    sure to bookmark your blog and will often come back someday.
    I want to encourage you to continue your great posts, have a nice

  15. I don’t even know how I ended up here, but I thought this
    post was good. I don’t know who you are but certainly you’re going
    to a famous blogger if you are not already 😉 Cheers!

  16. Oh my goodness! Incredible article dude! Thanks, However I am experiencing difficulties with your RSS.
    I don’t know why I am unable to join it. Is there anyone else having similar RSS problems?
    Anyone that knows the solution can you kindly respond?

  17. Thanks for sharing your info. I truly appreciate your efforts and I will be waiting for your
    next post thank you once again.

  18. Everything is very open with a clear description of the
    issues. It was truly informative. Your website is extremely helpful.
    Thank you for sharing!

  19. I think this is one of the most important information for me.
    And i’m glad reading your article. But want to remark on few general things, The site style is great, the articles is really excellent :
    D. Good job, cheers

  20. You actually make it seem so easy along with your presentation but I to find this matter to be actually something which I believe I’d by no means understand.
    It seems too complicated and extremely huge for me. I am taking a look forward to your next post, I will try to get the
    dangle of it!

  21. It’s actually a cool and useful piece of information. I’m glad
    that you shared this useful information with us. Please keep us
    up to date like this. Thanks for sharing.


Por favor ingrese su comentario!
Por favor ingrese su nombre aquí