COVID test

A cotton swab moves across a detailed anatomical illustration of the human brain and circulatory system, transitioning to a red, textured background with a bell icon, then to a cartoon virus character at a door with a "Are you home?" sign, followed by a green shape covering a pencil and a "YES NO" checkbox, and finally to a gloved hand holding a test tube. The sequence depicts a journey from internal anatomy to a public health scenario involving testing and a virus.