photo courtesty of Facebook Group Nuclineers What you see are plates that have bacteria growing on them- that's the white, cloudy stuff all over the plate. You put one colony on the plate that has a media on it that allows it to grow. You wait a day, then put the dots on. Those two white dots with writing on them are antibiotic discs. I can't read the writing on it, but they are probably two of your more common antibiotics like cephalexen and ampicillin. See the clear halo around the two on the left from 2009? That means that the antibiotics in the disc have killed all the bacteria around the disc. The bigger the halo, the more effective that antibiotic is to the bacteria. Now look at the one on the right dated 2019. Same bacteria. Same antibiotics at the same dosage. There is no halo around the left and on the right one, barely a halo. That's called,"Antibiotic Resistance" a once-potent antibiotic is now freaking useless to that bacteria. How doe...
there lives a woman with knitting needles of fire.