The test determines the susceptibility of a microbial species against different antibiotic agents. The introduction of various antimicrobials for treating variety of infections showed the necessity of performing antimicrobial susceptibility testing as a routine procedure in all microbiology laboratories.
How to Reduce Under-eye Puffiness. There are many causes and almost as many supposed cures for under-eye puffiness. Lack of sleep, a sinus infection, salty food, a lack of exercise and even your sleep position can play a role in this undesirable issue. And then there's the cause that no one wants to talk about â age.
Nasal Congestion and Allergies. The most common cause of dark, bluish circles under the eyes of children is sinus congestion, reports Barton D. Schmitt, M.D., at Parents. Inflammation and congestion in the nasal passage cause the veins around the child's eyes to enlarge and become darker, creating the dark tinge under the eyes.