Virus is everywhere and always ready to infect anything that has life. It is unable to grow or multiply outside of a living host and it needs another cellular entity in order to thrive. Any living unit including plants, animals, especially humans can be infected by virus. It could be sitting on any surface for a few hours waiting for unsuspecting victims or could simply be contacted then transmitted to another person due to personal lifestyles and habits. Viruses spread in various ways: plant viruses often spread in the plant kingdom by insects that feed on sap or “plant fluid ”, while animal and human viruses can be carried by blood sucking insects like mosquitoes, bedbugs, head lice, and free living- disease bearing worms like the slimy leeches in the tropics. Humans, being the biggest carriers of viruses, transmit the virus easily by coughing and sneezing. Some viruses are actually transmitted by the oral-fecal route. The virus, present in fecal particles, contaminate the hands, food or water and find their way to the mouths of the unsuspecting potential host.