Can't argue with Polish developer iFun4all's (wonder if they're a spin-off of Bloober?) claim that it is releasing the first Medical Defense Game for PlayStation Vita this week. Likely reminiscent of Inner Space, or Fantastic Voyage you need to travel through the body, defending it from the viral hordes.
There's very little information on the official site, but the game includes 3 campaigns, 84 levels, surival mode and up to 4 players in the offline hot seat mode. UPDATE: Some screens below.