Viruses are without doubt the smallest organisms on the planet. They have a basic design, which consists of a protein capsule containing RNA or DNA (Many viruses carry there genetic information in RNA instead of DNA). This is an example of a bacteriophage: Figure 1.1 Because most viruses adapt flawlessly to their host cell, virus structures varies greatly. But there are a few characteristics that viruses share. All viruses have a capsid, which consists of protein …showed first 75 words of 1077 total…

…showed last 75 words of 1077 total…because he opened institutes that were dedicated to create and produce vaccines because if their success in curing and eradicating diseases of pandemic proportions. Their work also helped to raise awareness of the deadliness of viral infection, which led to the common practice of vaccination. Vaccination provides immunity by injecting or scratching small and weakened doses of the disease into the victim, which allows the immune system to produce immunity to the diseases virulent form.