I think it's called infectious agent or something close to that.
That is not really true. The range is actually V00-X99
White blood cells surround and digest bacteria. White blood cells produce antibodies that destroy pathogens. The middle one, I don't know yet, and the ones at the bottom, I'm still figuring out.
Everyone feels down at times. The breakup of a relationship or a bad grade can lead to low mood. Sometimes sadness comes on for no apparent reason. Is there any difference between these shifting moods and what is called depression? Anyone who has experienced an episode of depression would probably answer yes.
A suffering overuse of injuries