Listeria is not susceptible to cephalosporins...
ampicillin is used instead
Cefaclor, also known as cefachlor or cefaclorum (brand names Ceclor, Distaclor, Keflor, Raniclor), is a second-generation cephalosporin antibiotic used to treat certain infections caused by bacteria such as pneumonia and ear, lung, skin, throat, and urinary tract infections.It is not an NSAID.Cefaclor belongs to the family of antibiotics known as the cephalosporins (cefalosporins). The cephalosporins are broad-spectrum antibiotics that are used for the treatment of septicaemia, pneumonia, meningitis, biliary-tract infections, peritonitis, and urinary-tract infections. The pharmacology of the cephalosporins is similar to that of the penicillins, excretion being principally renal. Cephalosporins penetrate the cerebrospinal fluid poorly unless the meninges are inflamed; cefotaxime is a more suitable cephalosporin than cefaclor for infections of the central nervous system, e.g. meningitis. Cefaclor is active against many bacteria, including both Gram-negative and Gram-positive organisms.
Machines using vacuum tubes as their active elements.
Active transport is the movement of a substance against its concentration energy.
Active vaccination produces antibodies against the particular organism. These antibodies kill the invading pathogen and protect the body against the disease.
Active against bacteria.
Active transport expends energy to move substances against a concentration gradient.
So they can keep up with the costs of the economically active of todays generation
Active Transport.
Active Transport
Active transport can occur against a diffusion gradient ("uphill flow).
Active transport
No, aminoglycocides are used