Respiratory syncytial virusa) is a leading cause of serious lower respiratory tract infections in infants.b) is an enveloped DNA virus of the adenovirus family.c) attaches to host cell membranes by means of neuraminidase.d) poses no threat to elderly people.e) mainly causes disease in the summer months.

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: What do you mean by contagious disease? use your own words to explain?

A: A disease can be defined as a disorder or deviation in the physical, physiological or any other…

Q: Which two viruses mainly infect the lower respiratory tract? A.Rhinovirus and influenza virus…

A:

Q: What are infectious diseases and means of transmission?

A: Introduction: Infectious illnesses are those that are caused by organisms such as bacteria, viruses,…

Q: What do you understand about a pandemic? What is Coronavirus or COVID 19 and its causative agent?

A: According to the question, we have to explain what is pandemic. In addition to that, we need to…

Q: Why doesn't a long lasting vaccine against common cold exist yet?

A: Common cold is most common viral infection that affect the upper respiratory tract of humans.

Q: Is the human gut microbiome contains trillions of microbes that both influence and are influenced by…

A: The gut microbiome basically implies the composite microbial genome found in the mammalian…

Q: Are the bacteria that cause Lyme disease likely to develop antibiotic resistance? Why or why not

A: Antibiotic resistance refers to the phenomenon in which certain bacteria and fungi develop…

Q: Name the most important control measure for preventing person-to-person transmission of a disease.

A: WAVE OF DISEASE TRANSMISSION:  When a diseased person contact with a person nearby by means of…

Q: Why are infectious diseases more common in developing nations than in the United States today?

A: According to the data provided by the World Health Organization, there is a lower level of mortality…

Q: Research the following communicable diseases (flu/cold, HIV, salmonella and malaria) and provide an…

A: communicable diseases are those diseases which be be spread from one host to another disease , they…

Q: Explain three reasons why infection may not occur after microorganisms enter the body? Solve it.

A: Infection is the result of foreign organism in the body. The route of transmission of microorganisms…

Q: At what specific sites within the body can the poliomyelitis virus multiply? What is the usual…

A: Virus refers to the infectious agent that replicates (or multiples) in the host cells. It comprises…

Q: What are adenovirus vectors  ?

A: Viruses are the obligate parasites.

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: How many strains of enterovirus are there

A: Microbiology is the field of biology that mainly deals with the study of microorganisms, their…

Q: What is tuberculosis? How is the disease transmitted? Is there treatment for tuberculosis?

A: Tuberculosis:  A contagious infectious bacterial disease having its main target area as the lungs.…

Q: Why is influenza such a common respiratory disease?How are influenza vaccines chosen?

A: Influenza is a common viral infection that is caused by influenza viruses that infect the nose,…

Q: What caused the Bubonic plague pathogens to transmit to humans?

A: Bubonic plague is an infectious fever caused by the bacterium Yersinia pestis. The disease was…

Q: What is a chronic and an infectious disease prevalent in the United States?

A: Chronic diseases are the one's who's condition lasts for year or more than a year, this may require…

Q: How would adequate ventilation help to prevent the spread of streptococcal infections?

A: The streptococci are the gram positive organisms which causes throat and nose infections.

Q: Which of the following organisms is the causative agent for a venereal disease? Yersinia pestis…

A: Venereal diseases are those diseases that are transmitted sexually from an infected person to a…

Q: What is the nature of infectious disease?

A: Pathogenic microorganisms, such as bacteria , viruses , parasites or fungi, cause infectious…

Q: What are the genetic and molecular features that differ between pathogens and members of the normal…

A: The phrase "ordinary microbiota" alludes to the microorganisms that live on a superficial level and…

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: Bacterial (e.g., S. pneumoniae) pneumonia is commonly manifested by a cough productive of sputum,…

A: PNEUMONIA: Pneumonia is a disease of the lungs that causes consolidation of the lung parenchyma.…

Q: indicate that a. the pathogen remains on the skin b. the body is responding to an infection. c. a…

A: Introduction  A pathogen is an organism that causes disease. Pathogens may spread disease once they…

Q: What is the major difference between common cold and flu? Why has no vaccine been developed for the…

A: Respiratory disorder causes several structural and functional alterations such as detachment of…

Q: What is the mechanism of pathogenicity for the Norovirus? Explain

A: Human noroviruses in the family Caliciviridae are a major cause of epidemic gastroenteritis.…

Q: Which of the following viral diseases has been acquired in the United States via inhalation of…

A: Viruses are obligate intracellular parasite which can be transmitted through various modes. When…

Q: What makes corona virus, dengue virus, human immunovirus, Mycobacterium tuberculosis and Salmonella…

A: All the above-mentioned organisms cause diseases in humans. The corona virus is responsible for the…

Q: A. How many people a year die due to insecticide misuse and exposure?  B. What does Bt stand for? C.…

A: Insecticide -----  Poisoning by insecticide , pesticides has been a severe public health problems…

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: In this case, bacteria were introduced to the patient’s muscles through an injection. How else might…

A: The infection of bone and muscles are relatively rare because they are present deep inside the body.…

Q: How might an understanding of the method by which gonorrhea is evolving resistance to certain…

A: Neisseria gonorrhoeae has developed resistance to a number of drugs already. They are penicillin,…

Q: List and describe the four methods by which infection can be transferred from the source to the host

A: Infection is caused in our bodies by various pathogens. The pathogen enters the body and affects the…

Q: Who is most at risk for contracting plague and why?

A: Infection is defined as the state of invasion on the body tissues of an organism, which is caused by…

Q: How long does it take to develop symptoms of influenza after being exposed?

A: Influenza is a viral disease caused by influenza viruses specifically influenza A and influenza B.…

Q: What are the three things required for an infection to occur? Give an example of each.

A: Under favorable circumstances, pathogenic organisms can gain access into body systems to cause a…

Q: Besides Lyme disease, is there another pathogen transmitted to ticks by way of the white footed…

A: Ticks spread disease taking white-footed mouse as a reservoir. In case, the pathogen infects the…

Q: Why can the flu virus cause pandemics?

A: A pandemic is a disease that spreads across a vast geographical area and affects a large proportion…

Q: What evolutionary evidence is there that malaria has plagued humanity for millennia? Have these…

A: Malaria is caused by a protozoa Plasmodium. It is spread by female anopheles which sucks the blood…

Q: Why is H5N1 avian influenza considered a majorthreat to public health?

A: H5N1 is a type of influenza virus. They belong to the family Orthomyxoviridae, and they are…

Q: Is this a graph of an acute, chronic or latent disease?

A: Diseases are mainly of three types : 1) Acute Disease - This type of a disease has a short term but…

Q: Name one disease where exotoxins are important

A: A disease is defined as an abnormal condition that will affect a living organism. Diseases are…

Respiratory Infections

Respiratory infections are infectious diseases of the respiratory tract that are mostly caused by bacteria and viruses. They cause infections of the throat, sinuses, airway path, and lungs. Respiratory infections are typically divided into two types: upper tract respiratory infection and lower tract respiratory infection.