The Kirby-Bauer Method for Antibiotic Susceptibility (with examples) 

not sure if you guys gives a damn but if you are stoned like me during the covid times then you can stream pretty much all of the new movies and series on instaflixxer. Been streaming with my brother during the lockdown =)

@Canaan Brixton yup, have been using instaflixxer for since november myself :D

@Canaan Brixton Yup, I have been watching on instaflixxer for since november myself =)

You're welcome!

Glad you liked this video!

Thanks for the comment!

Great question!. I’m glad to see that I’m not the only one who inquired about the exact instance.

First and foremost, it is not a good idea to collect unknown bacteria from a park bench or any surroundings as you could easily end up collecting virulent pathogenic strains which would be a serious biohazard for all experimenters. Nevermind, proceeding with the unknown bacteria idea which is a nice idea you have ,let's answer the remainder of your question. So let's say we have isolated an unknown bacteria which is non-pathogenic to Homo sapiens and exposed it to the antibiotic using the method discussed above. We may find that there is no zone of inhibition and thus we would say that the antibiotic is "ineffective" against this unknown bacteria. Antibiotics whether both lytic or static ,have targets in the bacterial cell and the absence of these targets renders them powerless to affect a bacterial cell. So your unknown bacteria would simply not have the target used by the respective antibiotic to affect it. Resistance on the other hand is when you have a known bacteria which was always being inhibited by the antibiotic and then after some time, you find a colony that grows uninhibited . This would be termed as "resistance" . We would say that the members of the colony gained " resistance" against that antibiotic by mutation.

No problem!