Viruses
By HousekeepingChannel.com
Microorganisms smaller than a single-celled bacterium, viruses cannot grow or reproduce apart from a living cell. A virus invades living cells and uses their chemical machinery to keep itself alive and to replicate itself.
Viruses may reproduce with fidelity or with errors (mutations). This ability to mutate is responsible for the ability of some viruses to change slightly in each infected person, making treatment more difficult.
Reference: MedicineNet.com.
References listed above credit sources The Healthy House Institute consulted for background or additional information.
All HHI-PediaTM content is © 2006-2024 The Healthy House InstituteTM.
Except for third-party Copyrighted© material, you may freely use, excerpt or cite this material provided the Healthy House Institute receives credit and the Web address www.HealthyHouseInstitute.com is plainly listed with all uses, excerpts or citations.