Universal Flu Vaccine - A vaccine that is effective against all forms of the influenza virus.⏎
Vaccine - A biological preparation that improves the immune system’s ability to recognize and destroy harmful infectious agents.⏎
Virus - An infectious agent that is only capable of replicating itself inside the living cells of other organisms.⏎
Strain - A genetic variant or specific subtype of a microorganism, such as a virus or bacteria.⏎