"Infected" is a song by American punk rock band Bad Religion, written by Brett Gurewitz.

It was released as a single in 1994 and appears on their eighth studio album, Stranger Than Fiction.

Along with "21st Century (Digital Boy)", "Infected" is considered to be their breakthrough song, as it received airplay from modern rock radio stations.

Gurewitz said: "Nirvana had proven that as long as the tempo doesn't freak anybody out, you can get on the radio with loud guitars.

[5] Billboard described the song as "not for the musak crowd, but it is an absolute must for programmers of modern rock radio".