Thirty Years with HIV Infection—Nonprogression Is Still Puzzling: Lessons to Be Learned from Controllers and Long-Term Nonprogressors

Table 1

Definitions of non-progressors.

	EC	VC	LTNP
CD4+ cell count (cells/μL)	>350	>350	>350
Viral load (copies/mL)	<50	50–200	>2000
Duration of infection (years)	*	*	>7
cART	No	No	No

*Duration of infection is not used in the definition of controllers in this review.