. "Viral vector" . "vector-based" . "virus" . "vector virus" . "rAAV" . "Viral_vector#Retroviruses" . "vaccines of this type" . "viral methods" . "Viral vectors" . "Viral vector" . "gammaretroviral vectors" . "retroviruses vectors" . "lentiviral vectors" . "lentiviral vector" . "lentiviral" . "adenovirus 5" . . "Viral_vector#Types" . "vectors" . "adenoviral" . "viral vector" . "virally" . "lentivirus vector" . . "biological vector" . "viral vector vaccine" . . "gene delivery" . "non-viral vectors" . "viral vectors" . "viral" . "adeno-associated viral vector" . "viral vector." . "Viral vector#Adeno-associated viruses" . "retroviral replicating vectors" . "adenovirus vector" . . . "Adeno-associated virus-based vectors" . "virally induced" . "adeno-associated virus" . "adeno-associated virus vector" . "Viral vector#Lentiviruses" . "Adenoviruses" . "adenoviral vector" . "adenovector" . "vector" . "Viral vector#Vaccines" . . "non replicating viral vector" . "retroviral vector" .