Table 3. Discomfort from injections with HIV-DNA using ZetaJet ID, electroporation ID or HIV-MVA IM injections according to a Visual Analogue Scale 0–10; 0 = no pain.

	ZetaJet		Electroporation a		HIV-MVA
Number of volunteers	27		18		24
Time from immunization	0 min	30 min	0 min	30 min	0 min	30 min
Number of observations	81	81	54	54	44	44
Median (10–90 percentile)	2 (0–4)	0 (0–1)	3 (2–7)	0 (0–1)	1 (0–4)	0 (0–1)

^aObservation after combination of needle-free ZetaJet delivery and electroporation