The Deadliest Virus on Earth

Used to refer to the person or people that the speaker is addressing. It is the second-person pronoun used for both singular and plural subjects and objects.

A system is a group of parts that work together as a whole. It can be used to describe a set of rules, a computer program, or a part of the body.

A submicroscopic infectious agent that replicates only inside the living cells of an organism, often causing disease. In technology, it refers to a piece of malicious code that replicates itself to damage or disrupt a computer system.

Immune describes the state of being protected from a specific disease, typically through vaccination or prior exposure. It can also figuratively refer to being unaffected by something negative, such as criticism, or being exempt from certain duties or legal consequences.

To hit someone very hard on the head, typically with a heavy or blunt object. It is a graphic and often informal verb used to describe a violent strike to the skull.