Antimicrobial Susceptibility Testing Market is predicted to value over USD 4.6 billion by 2028 end with a CAGR of over 5.4% during the forecast period 2022 to 2028. Antimicrobial susceptibility testing (AST) is a method for evaluating which antibiotics are effective against a certain pathogen or group of bacteria. When bacteria and fungi are unable to live in the presence of one or more antimicrobial medicines, they are considered sensitive.