All of the following statements about polioviruses are correct except _____. a. Poliovirus vaccines are produced in both inactivated and live-attenuated forms. b. The oral poliovirus vaccine is composed of three liveattenuated viral strains. c. Poliovirus infects both humans and cattle. d. If genetic reversion of strain 3 occurs when the virus is replicating in vaccinated people, pathogenesis may occur. e. In the United States, the recommended vaccine for poliovirus is the inactivated poliovirus vaccine (IPV).

Q: Active vs Passive vaccination, which is false: A. Passive vaccination: involves infusion of another…

A: Passive vaccination or passive immunization is referred to the administration of antibodies to an…

Q: ect Baltimore sys Match the Virus to the Co A. Hepatitis B virus B. Parvoviruses C. Reoviruses D.…

A: INTRODUCTION Classification is the process of giving names to organisms and placing them into a…

Q: Animal viruses may be grown in living animals or in embryonated eggs. a. True b. False

A: For laboratory purpose, research and studies, viruses are cultivated in laboratories in hosts. These…

Q: In general, zoonotic viral diseases are ________ in humans.a. mild and asymptomatic b. self-limited…

A: Zoonotic viral diseases are those that are spread from animals to humans by direct contact like…

Q: Creutzfeldt-Jacob disease is A. caused by a chronic latent virus. B. initiated by an oncogenic…

A: Creutzfeldt-Jakob disease (CJD) is a spongiform encephalopathy of humans, making option D the…

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A: HIV and CD4 Count HIV -  human immunodeficiency virus causes Acquired immune deficiency syndrome…

Q: Zoonotic viruses cause the same symptoms, with the same severity, in animals and in humans.   A.…

A: The question is asking whether zoonotic viruses, which are viruses that can be transmitted from…

Q: Stress can cause a latent virus to enter the lytic cycle, resulting in symptoms for the host. A.…

A: Virus is non - cellular particle which is smaller than the bacteria.  They  act as alive when enter…

Q: SARS-COV-2 may pass from person-to-person via aerosols which is a _______ transmission of the virus.…

A: SARS-COV-2 is a disease of respiratory system. The causative agent of this disease is novel corona…

Q: The coronavirus is named for it’s crown or “corona” in Latin which is made of A.jewels…

A: Corona viruses are a group of related RNA viruses that cause diseases in mammals and birds.In humans…

Q: Prior to entry, the _________ glycoprotein of the HIV virus recognizes the ______ receptor on the…

A: Step 1 Human immunodeficiency virus or HIV is a rounded enveloped retrovirus with a core having two…

Q: . Live, attenuated virus vaccines are contraindicated in: Select all that apply. A. children. B.…

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A: The capsule is a layer of polysaccharide found outside the cell envelope of bacteria.  Capsule gives…

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Q: Which of the following is an mRNA vaccine? A. AstraZenica B. Sputnik V C. Janssen D. Covaxin

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A: Virus have spikes protein.

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A: Characteristics of viruses- acellular, can not replicate unless inside of a cell, metabolically…

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A: A virus is an infectious microbe consisting of a segment of nucleic acid (either DNA or RNA)…

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A: Ebola virus is the causative agent of Ebola virus disease (EVD) or Ebola hemorrhagic fever. This…

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A: RNA-dependent RNA polymerase (RdRp) inhibitors are a class of antiviral drugs that target the…

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A: Option D is correct.

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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.