How are new viruses made?

Asexual reproduction

Viral DNA or RNA copied by viral cells

Sexual reproduction

Viral DNA or RNA copied by a host cells

New viruses are typically made through a process called viral replication. This process involves the copying of viral DNA or RNA by viral cells or host cells. Asexual reproduction, which involves the replication of viral genetic material within a single viral cell, can lead to the production of new viruses. In this process, the viral genetic material is replicated, and new viral proteins are synthesized, resulting in the formation of multiple virus particles.

During sexual reproduction, viral genetic material can be exchanged between different viral cells or host cells, leading to the formation of new hybrid viruses with mixed genetic material. This exchange of genetic material can occur through processes like recombination or reassortment, where different strains or types of viruses combine their genetic material to form new viruses with altered characteristics. This can contribute to the emergence of novel viruses with enhanced virulence or the ability to infect new host species.