Similarly when diagnoses are not accurately made, more often than not, broad-spectrum antibiotics, i.e. antibiotics that kill a large proportion of various bacteria and not only the bacteria responsible for the disease, are prescribed because the micro-organism responsible for the infection is not known.
Podobno se v primeru, kadar diagnoza ni natančno postavljena, največkrat predpisujejo antibiotiki s širokim spektrom delovanja, tj. antibiotiki, ki ubijejo velik del različnih bakterij in ne le bakterij, ki so odgovorne za bolezen, saj mikroorganizem, ki povzroča okužbo, ni znan.