Which of these statements concerning Creutzfeldt-Jakob disease(CJD) and vCJD is true?a) CJD occurs in children; vCJD occurs in adults over 45.b) CJD and vCJD are fatal in under 50% of cases.c) CJD is caused by prions; vCJD is a viral infection.d) Only humans suffer from diseases like CJD and vCJD.e) Both CJD and vCJD produce a spongy appearance in affected brain tissue.

Q: Select all of the following that applies to the tradeoff between transmission and virulence that…

A: Tradeoff means when one event cannot increase without a decrease in another.

Q: All of the following are emerging infectious diseases excepta) smallpox.b) hepatitis C.c) Lyme…

A: Answer is a.)  smallpox.

Q: The West Nile virus has what mode of transmission? a) Propagative b) Cyclo-propagative c)…

A: Answer- propagative

Q: Which characteristic of COVID-19 is NOT the same as in the 1918 flu pandemic? a) Blaming people from…

A: The spanish flu pandemic broken out by the end of first world war. It started in 1918 February and…

Q: After your immune system subdues the virus, you wake up in sweaty clothes. i) Explain generally why…

A: When a virus infects a person (host), it invades their cells to survive and multiply. Once inside,…

Q: Answer the following regarding the varicella-zoster virus: a) the biology of the virus ( type:…

A: Varicella-zoster virus is the virus responsible for causing chickenpox and herpes zoster. Primary…

Q: There are fewer antifungal, anti protozoal, and antihelminth drugs compared to antibacterial drugs…

A: The antifungal drug is a drug that is used to kill the fungus. The antiprotozoal drug is a drug that…

Q: Receptor molecules can determine the or tendency of a virus to infect a particular tissue type…

A: Tropism is measured by the presence of virus receptors on the surface of a host cell for several…

Q: ) 1) becomes latent in dorsal root ganglia that serve specific der 2) uses the respiratory…

A: Very well as hostel virus is also known as human herpesvirus 3. It causes chickenpox (varicella), a…

Q: The Shingles virus causes infections in adult patients years after they have experienced chicken pox…

A: Virus is a microscopic organism which contains a protective coat and the nucleic acid. It doesn’t…

Q: is able to bind to and cut off the 5' cap of the coronavirus RNA genome once it enters the host…

A: Coronavirus is RNA virus. In order to establish an infection every virus should find the susceptible…

Q: Which of the following is not an explanation for the lack of Hepatitis C eradication? A) High rate…

A: The fact that hepatitis C strains do not exhibit broad resistance to antiviral drugs is not often…

Q: Why must a new flu vaccine be manufactured annually? A.) The flu causes mutations in the host cell…

A: Introduction  We are surrounded by various pathogens such as bacteria, viruses, fungus etc. Every…

Q: Which statement about Yersinia pestis is false?a) Conditions inside human phagocytes activate…

A: Yersinia pestis is a non-motile, rod-shaped, Gram-negative bacterium that do not consists of spores.…

Q: Endotoxin is associated witha) Gram-positive bacteria.b) Gram-negative bacteria.c) the cytoplasmic…

A: Endotoxin : It is the chemical which is toxic in nature  released from  the bacterial cell when the…

Q: Which statistic below is the best example of incidence of a disease? A) In 2005, 2 million…

A: Disease in a population is categorized as either prevalent or incident cases. When a person is…

Q: In the United States, hantavirusesa) are limited to southwestern states.b) are carried only by deer…

A: A virus is an infectious agent that contains a single nucleic acid (RNA or DNA) core surrounded by a…

Q: What do the following viral encephalitis diseases have incommon: eastern equine encephalitis,…

A: Encephalitis is a disorder that results in the inflammation of the brain tissue. It is generally…

Q: All of the following are thought to contribute to the emergence of disease excepta) advances in…

A: The answer to the above question is option e i.e. widespread vaccination programs .  These vaccines…

Q: 5)How does the rate of disease transmission vary with the distribution of individuals? a)Population…

A: Diseases transmission means spread out of a perticular pathogen among the organisms. If it spread…

Q: Creutzfeldt-Jakob disease:(a) Is a form of meningitis(b) Is slow to develop with a long period of…

A: Answer: Introduction: Creutzfeldt-Jakob disease may take place naturally, be inherited or prion…

Q: Tuberculosis continues to be a serious health concern in many parts of the world. A) true B) false

A: An airborne infection that mainly affects the lungs, tuberculosis (TB) is contagious. Your brain and…

Q: A patient that experiences hydrophobia, has the appearance of Negri bodies in nerve cells, and later…

A: Microbes are generally visible under the microscope. These include several organisms like bacteria,…

Q: Define the term pathogen.   a) Using MRSA, NOROVIRUS, ATHLETES FOOT and MALARIA as examples,…

A: Define the term pathogen.   a) Using MRSA, NOROVIRUS, ATHLETES FOOT and MALARIA as examples,…

Q: Which of the following statements is false?a) A disease with a long incubation period might spread…

A: The immune framework is an organization of natural cycles that shields a living being from diseases.…

Q: Severely immunosuppressed people should not receive the measles vaccine. Based on this information,…

A: Vaccines contain live attenuated or killed (inactivated) organisms that are injected to the person…

Q: Body licea) can act as a vector to transmit disease.b) seldom spread from person to person.c) have…

A: Answer is b.) seldom spread from person to person.

Q: 3) What is the most successful treatment during pregnancy to reduce transmission of HIV from mother…

A: HIV (human immunodeficiency virus) is a virus that attacks cells in the body that help it battle…

Q: Which of these statements concerning foodborne botulism is false?a) It is not a central nervous…

A: Botox (Clostridium botulinum toxin) is a neurotoxin isolated from the clostridium botulinum bacteria…

Q: Which one(s) is/are more harmful to the host and why? A) Antifungal agents B) antiprotozoal agents…

A: Ani fungal drugs are the most harmful to human body even more than the anti protozoal agents and the…

Q: Which of the following diseases is least likely to be transmitted by water? a) Hepatitis A b)…

A: Pathogenic microorganisms transmitted through contaminated water produce water-borne illnesses.

Q: What would happen to a virus that found its way to an environment filled only with cells that were…

A: Virus  Viruses are the sub microscopic infectious organisms.

Q: Which statement among A-D is false regarding bacterial toxins? A) O Hemolysins are cell membrane…

A: Toxins refer to poisonous substances that include a class of small molecules and proteins, which are…

Q: Which of these statements concerning cryptococcal meningoencephalitis is true?a) It is caused by a…

A: Meningitis is the infection of the membranes lining the spinal cord and skull. Cryptococcal…

Q: Which one of the following is not correct?

A: Pharmacology is a part of medication and drug sciences worried concerned with medication or…

Q: The major issue associated with the use of live, attenuated virus for vaccines is _____. A)…

A: ANSWER) The use of live attenuated virus for vaccines is not recommended as the attenuated virus can…

Q: Which of the following are hosts of West Nile virus which are also responsible for infecting…

A: The illness caused by micro-organisms like bacteria, parasites, fungi and acellular organisms like…

Q: Match the following examples to the appropriate type of symbiosis.   - A microbe that lives inside…

A: Introduction:-  a) Symbiosis:- Symbiosis is a close ecological relationship between the individuals…

Q: The purpose of an analytical study is toa) identify the person, place, and time of an outbreak.b)…

A: Answer is b.)identify risk factors that result in high frequencies of disease.

Q: Which of the following statements about Pasteurella multocida is false?a) Infections generally…

A: Bacteria are the most important microorganisms to the food processor. Some bacteria are beneficial…

Q: Which diseases did doctors need to rule out in the process of identifying Zika as the cause of…

A: The virus that causes the Zika virus disease is mostly spread by Aedes mosquitoes. Mild fever, skin…

Q: Over time, how does a virus normally become more able to to infect a host organism and be…

A: Answer  a) mutations

Q: If you and your family all develop infectious diarrhea, the most likely portal of entry for the…

A: Pathogens are the organisms that are capable of disrupting the normal physiological balance of an…

Q: The flu virus in flu vaccines is a dead virus. The term to describe the virus in this situation is…

A: Correct answer is B

Immune Disorders

The collaboration between the cells and proteins that work together as a defense system against infection comprises the immune system.Each of them performs a variety of tasks to recognize and/or react against a foreign body.