Microbiology Following statement is false regarding Colistin: A It belongs to a group of antimicrobial agents known as polymyxins which were originally isolated from the spore forming soil organism Paenibacillus polymyxa B Colistin is a mixture of polymyxin E1 and E2, two bactericidal pentacationic lipopeptide C All gram positive bacteria are susceptible to Colistin D Colistin is generally used to treat infections with multidrug-resistant, extensively drug-resistant and pan drug-resistant bacteria 💡 Explanation Following statement is false regarding Colistin: ✓ Correct Answer: C. All gram positive bacteria are susceptible to Colistin