Smallpox and Plague continued to bedevil Europe and what appeared to be a new disease, Typhus,  made an appearance during the late 15th century All three proceeded to have an impact on continental rivalries through the 18th century.  Describe what typhus, its connection to war, and its impact, along with plague during the various conflicts in the period in question.  Be sure to provide at least two examples of its impact in war time.

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Viral Infections

Viruses are abundantly found, minute entities that have genetic material enclosed within a protein coat. The proteinaceous material enclosing the genetic material of the virus is called a capsid. The genetic material could be either DNA (deoxyribonucleic acid) or RNA (ribonucleic acid). A virus is too minute to be looked at with naked eyes and therefore visualized with the help of a microscope. They are acellular entities that require a host for processes, such as replication, transcription, translation and multiplication. Plants, animals, and bacteria act as host wherein the virus reproduce. Viruses cannot multiply outside the host's body and thus are considered nonliving outside the host body.