Virusët
Virusët are microscopic infectious agents that can only replicate inside the living cells of other organisms. They are found in nearly every ecosystem on Earth and are the most numerous type of biological entity. The word "virus" comes from the Latin word for poison.
Viruses are diverse. They infect all types of life forms, including animals, plants, fungi, and even bacteria.
Viral particles, or virions, typically consist of genetic material, either DNA or RNA, enclosed in a protein
The study of viruses is called virology. Viral infections can cause a wide range of diseases, from