For a virus, the vaccine can contain just a piece of the protein coat that surrounds the virus's DNA (or RNA). Even small portion of a virus is sometimes enough to stimulate an immune response in ...

View Full Profile. Learn about our Editorial Policies. The M13 bacteriophage, a rod-shaped virus that infects bacteria, is adorned in a molecular coat, woven from nearly 3,000 copies of a helical ...

Virus protein coats are shown in gray, and are decorated with the Spike protein (green) and glycoprotein (red). Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news ...