LACTB and bathing suit ichthyosis: Overall, in those with gram-negative BSI, 49.3% found to be non-susceptible to at least one agent in ≥3 classes of antibiotics, including carbapenems (imipenem or meropenem), combinations of beta-lactams plus beta-lactamase inhibitors (piperacillin-tazobactam or ampicillin-sulbactam), cephalosporins (3rd or 4th generation cephalosporins), aminoglycosides (amikacin or gentamicin), or fluoroquinolones (ciprofloxacin or levofloxacin).