Depending on the type of infection of the different pathogens causing pneumonia, it is most effective to choose different cephalosporins for treatment. Generally, for bacterial pneumonia caused by Gram (-) bacilli, you can choose cephalosporin 3rd generation drugs, such as ceftriaxone sodium, cefoperazone sulbactam sodium. For pneumonia caused by Gram (+) bacteria, you can choose the first generation of cephalosporins, such as cefazolin, cefradine and so on. For pneumonia caused by mixed infections of Gram (-) and Gram (+) bacteria, cephalosporins of the second-generation class, such as cefuroxime and cefamandole, can be given with relatively significant results.