What are virus particles primarily composed of?

Virus particles are primarily composed of genetic material, which can be either DNA or RNA. This genetic material is encapsulated in a protective protein coat called a capsid. Some viruses also have an outer envelope made of lipids, but the core component that distinguishes viruses is their genetic material, which is essential for replication and identifying the virus's specificity. The composition of proteins or fatty acids, cells and tissues, and water and sugar is either less relevant or does not accurately represent the fundamental structure of virus particles. Understanding the essential components of viruses helps in comprehending how they function, replicate, and interact with host cells, which is crucial for developing vaccines and treatments against viral infections.