The phrase "susceptible strains" refers to types or varieties of something (such as bacteria or viruses) that can easily be affected or harmed by certain conditions, medications, or attacks. Full definition
Because of this, proper use of antibiotics should result in susceptible strains eventually replacing resistant ones. (sciencedaily.com)
Clindamycin is an antibiotic used to treat soft tissue, dental, and bone infections caused by susceptible strains of bacteria. (1800petmeds.com)
Mupirocin Ointment is indicated for the topical treatment of canine bacterial infections of the skin, including superficial pyoderma, caused by susceptible strains of Staphylococcus aureus and Staphylococcus intermedius. (medi-vet.com)