Which of the following statement regarding the whole-pathogen vaccine is/are correct (B) Live attenuated whole-pathogen vaccines are more effective to elicit a robust immune response, and often a single dose is sufficient.   A and B are correct   (A) Inactivated whole-pathogen vaccines are usually less immunogenic and often require booster doses/s   A and C are correct   (C) Inactivated whole-pathogen vaccines never cause disease but live attenuated vaccines always cause a mild disease.

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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.