Which of the following is NOT true about influenza? None of the other four answers (All are true about influenza) Influenza viruses infect only humans Immunization against one subtype of influenza virus fails to protect against all subtypes Some cases result in lower respiratory tract infections, including pneumonia Influenza viruses are highly genetically variable and undergo antigenic drifts and shifts

Q: Choose all that apply. What mechanism(s) is (are) involved in the evolution of HIV resistance to the…

A: HIV (human immunodeficiency virus) is a virus that objectives the safe framework. On the off chance…

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

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

Q: All of the following are true about typhus EXCEPT: It is caused by a type of bacteria called…

A: Epidemic typhus is an uncommon disease that is transmitted from an infected person to healthy person…

Q: Regarding EV71 infection, the following statement about this pathogen is correct, EXCEPT The best…

A: Enterovirus 71 (EV71) infection is a neurological disease that is caused by enterovirus 71. It is a…

Q: Which of the following human diseases is caused by a virus that requires reverse transcriptase to…

A: The virus is the connecting link between living and non living. Most of the animal viruses are RNA…

Q: HIV   - is a virus with RNA as the genomic material   - is a retrovirus that reverse-transcribes…

A: HIV (human immunodeficiency infection) is a retrovirus that attacks the host immune system. In the…

Q: The emerge of the SARS-COV-2 and middle east respiratory syndrome (MERS)-COV illustrate the threat…

A: The coronavirus disease 19 (COVID-19) is a highly transmittable and pathogenic viral infection…

Q: What large family of viruses causes respiratory infections such as the common cold? Herpesvirus…

A: Viruses are very small infectious agents, hard to see with the naked eyes. Some viruses cause very…

Q: Are Monkeypox and Smallpox the same? What are the similarities and differences? Include in your…

A: Orthopoxvirus is a genus of viruses in the Poxviridae family and the Chordopoxvirinae subfamily.…

Q: Virus Host(s) Size Genome Type Transmission Symptoms Vaccine Interesting fact Coronavirus |

A: Coronaviruses are a group of SARS (Severe acute respiratory syndrome) causing types of viruses. They…

Q: what type of immunity is responsible for aggulutination of viruses

A:

Q: An example of a primary immunodeficiency is DiGeorge syndrome HIV immunosuppressive drugs radiation…

A: Immune system is system which helps our body to fight against the foreign substances which will…

Q: An important feature of many pathogenic viruses is their resistance to interleukin-2. O interferon.…

A: Pathogenic viruses are master at invading a cell and invoking a pathological state they can get into…

Q: What is one similar Epidemiology and one difference  between Influenza and Covid -19

A: Epidemiology is the study of the pattern of disease like how it is transmitted in a population ,…

Q: Compare and contrast antigenic drift and antigenic shift in influenza viruses.

A: Influenza virus is well known for its ability to change its genetic composition. Antigenic drift…

Q: Which of the following is an example of a noncommunicable infectious disease?   infection with a…

A: Introduction :- A disease that cannot be spread directly from one person to another is referred to…

Q: Which infectious disease was eliminated through a vaccination and quarantine program led by the WHO…

A: WHO launches the programs of infectious disease elimination. Vaccination is a method used for…

Q: 1. Commpare antigenic shift to antigenic drift. Why does antigenic shift prevent the production of a…

A: Influenza viruses are notable for the frequent antigenic shift that occurs in HA (hemagglutinin) or…

Q: Mechanisms of virulence by microorganisms include

A: Virulence is defined as the ability of a microorganism to infect the host cell and cause disease.…

Q: Which of the following is NOT true about the current coronavirus global pandemic (COVID-19)…

A: The correct answer is --- The causative microbe can infect many tissue types by binding to a cell's…

Q: The Gardasil 9 vaccine prevents infection by all types of human papillomaviruses. True or False

A: The given statement is false.Human papillomaviruses (HPV) cause sexually transmitted diseases that…

Q: All of the following are protozoan diseases of the gastrointestinal tract, acquired by ingesting…

A: Epidemic typhus is an uncommon disease that is transmitted from an infected person to healthy person…

Q: This extremely contagious disease is often transmitted to over 90% unprotected close contacts of the…

A: Viral Infections are extremely contagious and spread by harmful virus inside the body once…

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.