A previously published dual‐fluorescent reporter virus was modified so that expression of enhanced green fluorescent protein (GFP) was under control of the elongation factor 1 alpha (EF1α) promoter to detect latent infection, and E2 crimson (E2CRM) was under control of the nef promoter to detect productive infection. The gene discussed is EEF1A1; the disease is disease arising from reactivation of latent virus.