How does the fact that Rocky Mountain spotted fever is a zoonosis relate to the relative severity of the disease symptoms?

Q: Why is infection by herpesvirus permanent?

A: Introduction  Herpesviridae is a large group of DNA virus which has around 135 types found in…

Q: What is the source of the virus that causes hantavirus pulmonary syndrome?

A: Any infectious agent or microorganism (Virus, bacterium, protozoa, ETC) that can cause disease is a…

Q: SARS is a disease that appeared in 2003 with epidemic features in the province of Guangdong, in east…

A: SARS is transmitted from an animal to other animals and humans. The epidemic affected around 26…

Q: Where did the Small pox originate? and What impact did it have on the individuals living in…

A: Before smallpox was destroyed, it was a significant irresistible infection brought about by the…

Q: What are the arthropod vectors and animal hosts for typhus,spotted fever rickettsiosis,…

A: A vector is any agent which carries and transmits an infectious pathogen into another living…

Q: What is the main way by which someone is infected with the Zika virus?

A: The most common symptoms of Zika virus illness are fever, rash, headache, joint pain, red eyes, and…

Q: What is African sleeping sickness? Explain the cause of African sleeping sickness ?

A: African sleeping sickness is caused by Trypanosoma brucei. African sleeping sickness is caused by a…

Q: If you contract African sleeping sickness on a visit to central Africa, what type do you most likely…

A: African sleeping sickness is caused by flagellated protozoa known as Trypanosoma gambiense.  The…

Q: Could you please explain the term ʼzoonosis'.

A: Introduction Diseases are an illness or sickness characterized by specific signs or symptoms, it…

Q: Considering that CMV infects 50% of the adult population in the United States and 100% of the…

A: Viruses are microscopic agents that can replicate only inside the host cells. They can infect all…

Q: What genetic differences make some individuals more and some less susceptible to malaria ?

A: DNA is the genetic material in most living organisms. It is the information hub of the cell that…

Q: Why would medication fail to cure HSV infections even though it prevents recurrent cold sores?

A: Herpes affected individuals are generally asymptomatic or show painful blisters and ulcers. HSV…

Q: what type of agent is the Variola virus? BSL...

A: Any infectious agent or microorganism (Virus, bacterium, protozoa, ETC) that can cause disease is a…

Q: Why has it been so difficult to eradicate polio using vaccination?

A: Because , They face many challenges such as insecurity , poor health systems, and poor sanitation,…

Q: Describe the life cycle of the blood fluke? How and why do the male and female blood fluke differ in…

A: Phylum lophotrochozoa involves organisms having a lophore; a specialized tentacle structure, and…

Q: Ascariasis is caused by _______?

A: Ascariasis is also termed as a roundworm infection. Signs and symptoms include loss of appetite,…

Q: Why is it important to learn about rabies when only a few cases occur in the entire United States…

A: Rabies: Rabies is a disease caused to humans by an infected animal bite. These viruses belong to the…

Q: What are the etiologicalagents of malaria?

A: Malaria is a deadly and most important protozoal disease. Approximately, half of the world’s…

Q: What are lentiviruses?

A: Viruses are dignified as the acellular entity. They are unable to regenerate after they have quit…

Q: How does Rhinovirus contribute to the virulence of pathogens

A: Rhinovirus is a group of viruses also known as Piconavirus and falls in the family of the…

Q: Which animals in the United States are most frequently involved ascarriers of rabies?

A: Rabies is a virus that is carried by a number of mammals like cats, skunks, dogs, and bats.

Q: How do exotoxin cause fever

A:

Q: What is the cause of malaria? Why does the presence of sickle cell trait confer resistance to some…

A: Malaria is caused by Plasmodium vivax or Plasmodium falciparum. The organism completes its life…

Q: Which animal is remained free from minamata disease in minamata bay japan?

A: The process of conversion of mercury to water-soluble Dimethyl mercury,  which undergoes with the…

Q: what factors influence the host's susceptibility to dengue

A: Dangerous Components of the DHF consist of Aedes mosquito contamination, heat and humid climate that…

Q: People in central Asia are still suffering from smallpox in-fections. True or false?

A: Introduction:- The variola virus, a member of the orthopoxvirus family, causes smallpox, an acute…

Q: What are the epidemiology and risk factors of the Black Plague?

A: Black plague is a disease caused by Yersinia pestis bacterium. It affects rodents, humans, and other…

Q: How does the immune response to yearly flu differ from that of the avian flu? How does this relate…

A: Yearly flu or seasonal flu is caused by influenza virus. It causes symptoms like fever, running…

Q: Why Leishmaniasis is called black fever?

A: kala azar [hindi: black + illness] is illness caused by the infection of a parasite called…

Q: What mode of transmission is common between both the rhinovirus (causes the common cold) and the…

A: Human respiratory virus infections can be fatal on the basis of how it is spread. These viruses…

Q: Why do you think there are no longer polio cases in the US, but there are some cases of influenza?

A: Vaccination is an activity during which an inactivated or killed pathogen is administered to a…

Q: pathogenesis of dengue virus?

A: The CDC and WHO states that preventing the diseases is a procedure where the individuals can stay…

Q: Where can you get valley fever

A: Valley fever is a fungal disease caused after coming in contact with coccidioides. Symptoms of this…

Q: What was one critical change that occurred as a result of yellow fever and the prevention of the…

A: Yellow fever is an acute viral disease that is transmitted by infected mosquitoes. Yellow fever…

Q: List three symptoms of the Bubonic Plague

A: BUBONIC PLAGUE- The plague is an infectious disease caused by a bacteria known as Yersinia pestis.…

Q: What is the swine flu

A: Viral disease is more contagious than other microbes and can spread more quickly among a population.…

Q: What is the biology of malaria? a. what is its pathogenesis?

A: The invasion of the red blood cells by the asexual forms of the malaria parasite triggers all the…

Q: What correlation did Dr. Tony Allison find between sickle cell disease and malaria?

A: Sickle cell anemia is an autosomal recessive disorder in which RBC /erythrocyte/blood cell…

Q: Name the disease caused by arbovirus.

A: A virus is a submicroscopic infectious particle that replicates only inside the living cells of an…

Q: What is the Spanish Flu

A: Spanish Flu was an influenza pandemic occurred in 1918. It is also called as Great Influenza…

Q: fnosocomial infection?

A: Nosocomial infections also known as Healthcare associated infections are infection (s) that was not…

Q: Why is Zika virus disease considered dangerous even though itrarely kills?

A: The Zika virus is a single-stranded ribonucleic acid (RNA) virus that belongs to the Flaviviridae…

Q: What is the virus transmission, the morphology and the family name of the virus that causes…

A:

Q: What are the causes of typhoid?

A: Bacteria are a member of a large group of unicellular microorganisms. It has cells walls, but lack…

Q: What is tobacco mosaic virus (TMV) ?

A: Viruses are non-cellular organisms capable of reproduction only inside another living host. Their…

Q: What is the virus transmission of Cytomegalovirus?

A: Cytomegalovirus (CMV) is a virus that belongs to Herpesviridae family. It is found worldwide and…

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.