Safety and tolerability of a DNA-based influenza vaccine composed of a combination of two different H1 HA plasmids administered ID followed by electroporation in healthy elderly adult subjects Day 0 through Month 12 [clinicaltrials_resource:569d302540aaa126311316d6be929c75]

Frequency and severity of local and systemic reactogenicity signs and symptoms, adverse events and serious adverse events

Safety and tolerability of a DNA-based influenza vaccine composed of a combination of two different H1 HA plasmids administered ID followed by electroporation in healthy elderly adult subjects Day 0 through Month 12 [clinicaltrials_resource:569d302540aaa126311316d6be929c75]

Frequency and severity of local and systemic reactogenicity signs and symptoms, adverse events and serious adverse events