A First in Human Study to Evaluate the Safety and Immune Response to a Vaccine for the Treatment of a Respiratory Virus, When Administered Into the Arm in Healthy Adult Participants

BARS13 low dose (one dose of 10 μg rRSV-G protein/10 μg CsA by IM injection to the deltoid region of one arm, and one dose of placebo \[saline/mannitol\] by IM injection to the deltoid region of the other arm, given sequentially).

BARS13 high dose (IM injection of 10 μg rRSV-G protein/10 μg CsA administered to the deltoid region of each arm \[one injection of 10 μg rRSV-G protein/10 μg CsA per arm\], given sequentially). The high dose is twice the strength of the low dose.

Placebo (IM injection of saline/mannitol administered to the deltoid region of each arm \[one injection per arm\], given sequentially).