What is the most common type of nosocomial infection?a) Bloodstream infection     b) Gastrointestinal infectionc) Pneumonia                      d) Surgical wound infectione) Urinary tract infection

Q: Why is it incorrect to say that bacteria produce toxins to harm their host?

A: When a bacterium invades a host cell it may produce a toxin. Toxins are strong elements that are…

Q: Is Haemophilus influenzae a virus or bacteria?

A: Micro-organism are tiny organisms that cannot be seen by the naked eye, but are visible under…

Q: What is the difference between an emerging and a reemerginginfectious disease?

A: An infectious disease is the one that is caused by pathogenic microbes. These microbes can be…

Q: Is Saccharomyces cerevisiae a bacteria?

A: Bacteria represent a large domain of prokaryotes. They do not have any membrane-bound nucleus and…

Q: Why did the 1918 influenza affect mostly the young and healthy?

A: VIRUS:- Influenza A virus subtype H1N1, the outbreak which it has caused are the 2009 swine flu…

Q: How does knowing the anatomical location of normal microbiota help clinicians diagnose infection?

A: NORMAL MICROBIOTA:- Normal flora local flora of the human body present at several places like on the…

Q: How did Escherichia coli become pathogenic?

A: Escherichia coli or E. coli can be described as the gram negative, facultative anaerobic, rod shaped…

Q: Why are staphylococcal infections becoming increasingly difficult to treat?

A: Staphylococci are Gram-positive spherical bacteria that occur in the form of grape-like clusters.…

Q: osaic disease was NOT caused by a bacteria?

A: The virus can be defined as the submicroscopic infectious agent that can replicate inside the living…

Q: What are opportunistic microorganisms?

A: Microorganisms are ultramicroscopic organisms that mainly found as unicellular, multicellular or as…

Q: What is a lytic infection?

A: Bacteriophages can be defined as the most diverse entities in the biosphere. Bacteriophages are…

Q: what is MRSA?

A: Methicillin-resistant Staphylococcus aureus (MRSA) was first observed in the years of 1960.

Q: What are the main reservoirs of nosocomial infections?

A: Most frequent infection sites related to medical building infection embrace tract infection…

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: Which bacterial infections present the most concern and challenge for the public health agencies?

A: There are several species of bacteria that are pathogenic to humans and cause a wide number of…

Q: Why does the medical microbiological community propose that physicians be more cautious in their…

A: Antibiotics are the substances used by human organism that inhibit the activity of other…

Q: How does the E. coli strain 026:H11 damage its victims?

A: The enterohaemorrhagic E. coli (EHEC) serotype O26 is the second most common enterohaemorrhagic E.…

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: Two microbiologists are writing a textbook, but they cannot agree where to place the discussion of…

A: A neurotoxin isolated from the clostridium botulinum bacteria (can cause food poisoning) is Botox…

Q: What do you mean by prosenchyma?

A: The parenchyma is the functional part of the nervous system contains neurons and nerves that carry…

Q: Do you think you will find more bacteria on the sole of your shoe, on your lip balm, on the water…

A: The presence of microbial life always fascinates us to see how life can be so unpredictable. The…

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: Normal microbiota provide protection from infection in each of the following ways EXCEPT:   Question…

A: Host-microbial interaction is the type of interaction that is found between the host cell and the…

Q: What is the nature of infectious disease?

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

Q: What are the diagnosis, signs, and symptoms of the Black Plague?

A: Plague is caused by a gram negative bacterial pathogen Yersinia pestis. Plague has two phases.…

Q: Is Bacillus cereus pathogenic?

A: Bacillus Cereus bacteria commensal or pathogenic to foods

Q: What was the common treatment for cholera beginning in the 1830s? Why was this not useful in large…

A: We know that, Cholera is a disease caused by the bacteria Vibrio cholerae and it occurs through…

Q: What food is a common source of Salmonella infections?

A: The microbes that affect the intestine of an individual are referred to as enteric pathogens. The…

Q: How long does penicillin take to kill infection?

A: Penicillin is a type of antibiotics and they are used to treat bacterial infections. They kill or…

Q: If you were an epidemiologist interviewing someone with an infectious disease that could lead to an…

A: Microbes, which are tiny and nearly invisible, have had a huge influence on society since the…

Q: What is Escherichia coli?

A: Bacteria are microscopic, unicellular living organisms, which can be found everywhere. They can be…

Q: What is a reasonable treatment for an E. coli infection

A: Interferons are used against viruses, so they are widely used for the treatment of chronic viral…

Q: What makes bacterial diseases such as Clostridium botulinum, Clostridium perfringens & Clostridium…

A: 1.Clostridium botulinum is an anaerobic, rod-shaped spore forming bacterium that produces a protein…

Q: What is the purpose of the lab whereby you take a throat swab and identify the normal bacteria in…

A: A throat culture is a test that looks for germs that can cause an infection (such as bacteria or…

Q: Where do the organisms that cause staph and strep infections typically come from?  What causes them…

A: Strap infections are mainly caused by staphylococcus bacteria while strep infections are caused by…

Q: If the bacterium in question during the perlo outbreak had beenE. coli instead of S. aureus, how…

A: The perlo outbreak was caused by Staphylococcus aureus that causes food intoxication and had led to…

Q: How can we experimentally prove that enterotoxin (A-B cholera toxin) is the sole cause of clinical…

A: Several microorganisms produce and secrete protein exotoxins that are either chromosomally encoded…

Q: what is Bacteriostasis

A: Bacteriostatic is a biological or chemical agent that stops bacteria from reproducing, while not…

Q: What is iproniazid ?

A: Chemical substances that change an individual's psychological or actual state are referred to as…

Q: fnosocomial infection?

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

Q: What is Creutzfeldt–Jakob disease ? Does it affect human ?

A: A neurodegenerative disorder is a nervous disease, which is caused due to progressive damage of the…

Q: Why is Alzhemier's disease the 6th leading cause of death in the United States right now?

A: Alzheimer's is a progressive disease, where dementia symptoms gradually worsen over a number of…

Q: Is COPD an infectious disease, metabolic in nature, or a genetic disorder?

A: COPD stands for chronic obstructive pulmonary disease. It is an inflammatory lung disease that…

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: How do you know if the particles on the surfaces in your classrooms are infective?

A: bacteria , viruses and spores live on the surface for variable amount of time from 1 day to many…

Q: What is bacillus cereus ?

A: Microbes are the small sized organisms that can't be seen by naked eyes. The microscope is used to…

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.