This three-part animation series explores the biology of the virus SARS-CoV-2, which has caused a global pandemic of the disease COVID-19.

SARS-CoV-2 is part of a family of viruses called coronaviruses. The first animation, Infection, describes the structure of coronaviruses like SARS-CoV-2 and how they infect humans and replicate inside cells. The second animation, Evolution, describes how these viruses evolve and discusses positive, negative, and neutral mutations. The third animation, Detection, describes the methods used to detect active and past SARS-CoV-2 infections. These animations are also available in a YouTube playlist.

The accompanying “Student Worksheets” incorporate concepts and information from the animations. The “Version 1” worksheet is appropriate for general high school biology students, and the “Version 2” worksheet is appropriate for AP/IB Biology and undergraduate students. 

The “Resource Google Folder” link directs to a Google Drive folder of resource documents in the Google Docs format. Not all downloadable documents for the resource may be available in this format. The Google Drive folder is set as “View Only”; to save a copy of a document in this folder to your Google Drive, open that document, then select File → “Make a copy.” These documents can be copied, modified, and distributed online following the Terms of Use listed in the “Details” section below, including crediting BioInteractive.

An audio descriptive version of the animation is available via our media player by clicking the "AD" button in the lower left hand corner of the media player.