Petriho miska: k čemu slouží?

O tom, jestli rouška zastaví viry a bakterie, jak se používá Petriho miska k ověření kontaminace, a jestli je bezpečné pouštět větry na operačním sále.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1121900/

What does a mask do? Blocks respiratory droplets coming from your mouth and throat.

Two simple demos:

First, I sneezed, sang, talked & coughed toward an agar culture plate with or without a mask. Bacteria colonies show where droplets landed. A mask blocks virtually all of them. pic.twitter.com/ETUD9DFmgU

— Rich Davis, PhD, D(ABMM), MLS 🦠🔬🧫 (@richdavisphd) June 26, 2020

Hudba:
Overworld by Kevin MacLeod
Link: https://incompetech.filmmusic.io/song/4189-overworld
License: http://creativecommons.org/licenses/by/4.0/
„Inspired“ Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
http://creativecommons.org/licenses/by/4.0/
Rollin At 5 by Kevin MacLeod
Link: https://incompetech.filmmusic.io/song/5000-rollin-at-5
License: http://creativecommons.org/licenses/by/4.0/
„Go Cart“ Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 4.0 License
http://creativecommons.org/licenses/by/4.0/

Obrázky:
Image by 272447 from Pixabay
Image by Birgit Blunser from Pixabay
By Lilly_M – Own work(dzięki współpracy ze szkołą fotograficzną – Fotoedukacja /in cooperation with the school of photography – Fotoedukacja), CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=13190864
By Lilly_M – Own work(dzięki współpracy ze szkołą fotograficzną – Fotoedukacja /in cooperation with the school of photography – Fotoedukacja), CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=12887155
By Lilly_M – Own work(dzięki współpracy ze szkołą fotograficzną – Fotoedukacja /in cooperation with the school of photography – Fotoedukacja), CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=13199960
By Oksana Lastochkina – Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=45169080
By Satyamon1993 – Own work, CC BY 4.0, https://commons.wikimedia.org/w/index.php?curid=64771835
By Ufficio Comunicazione, Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Alessandria and Biblioteca Biomedica Centro di Documentazione – Azienda Ospedaliera SS. Antonio e Biagio e Cesare Arrigo, Alessandria, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=84863271
By NIAID – Group A Streptococcus Bacteria on Human Neutrophil, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=39933165
By Stewart EJ, Madden R, Paul G, Taddei F (2005) – Aging and Death in an Organism That Reproduces by Morphologically Symmetric Division. PLoS Biol 3(2): e45. https://doi.org/10.1371/journal.pbio.0030045, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=66760258