The Discovery of Viruses

The journey of understanding viruses began with the realization that certain diseases could not be attributed to bacteria. Early microbiologists identified these infectious agents, coining the term "virus" to describe them as new types of pathogens. Over the years, significant breakthroughs, including the crystallization of the tobacco mosaic virus and the discovery of DNA's role in genetics, have revealed the complex nature of viruses and their specific host ranges. Today, millions of viruses remain unclassified, showcasing the vastness of this microscopic world.