Özet:

From the Latin, the word virus means poison and "infectious disease agent", before Dmvitri Ivanovsky discovered viruses in 1892, was first recorded in 1728. The debate on whether viruses are alive or not is still running and since viruses are found wherever life exists, it is thought that viruses have been present ever since living cells first developed. Viruses can exist as virions and independent viral particles in the infected cell or in the process of infection. Virion, a single virus particle that contains all the structures of a virus, consists of two or three parts; a viral genome, which may be either DNA or RNA and large molecules carrying genetic material, a protein layer called capsid that surrounds and protects genetic material and a lipid envelope surrounding the protein layer. In this study, the sections that compose the structures of viruses were generally examined and types of viruses that derive from different sources, have different genetic structure and affect people were discussed.

Anahtar Kelimeler: