What are cephalosporins? Cephalosporins are a class of antibiotics widely used clinically. Like penicillin, they are all beta lactam antibiotics. People usually divide microorganisms into 8 categories: bacteria, viruses, fungi, actinomycetes, rickettsiae, mycoplasma, chlamydia, and spirochetes. These microorganisms can cause us to get sick under certain conditions, but "cephalosporin" only has a killing effect on […]