Question

What are viruses? How can they spread?

Answer 1

Viral and bacterial infections are both spread in basically the same ways. A person with a cold can spread the infection by coughing and/or sneezing. Bacteria or viruses can be passed on by touching or shaking hands with another person

Answer 2

Viruses r microscopic but r not considered as microorganisms. They however reproduce only inside cells of host organism...
Viruses can spread in a contact of one person suffering from a viruse disease. When he comes in contact with a healthy person they can spread.....