Q: What is the primary virulence factor for Streptococcuspneumoniae?
A: Streptococcus pneumoniae also is known as pneumococcus is a gram-positive coccus. They are…
Q: Can Saccharomyces be treated with antibiotics?
A: Antibiotics are medicines that help to stop the infections caused by bacteria. They work by either…
Q: Why are most newborn babies unlikely to contractpneumococcal, meningococcal, or Haemophilus…
A: The immune system of the body protects the individual from the attack of external pathogens. The…
Q: What is the most common gram-positive bacteria that causes pneumonia in adults?
A: Hans Christian Gram gave the staining method in 1884 to distinguish between gram-positive and…
Q: Why does Mycobacterium tuberculosis direct macrophages to engulf them?
A: Tuberculosis (TB) is an opportunistic infectious disease caused by the bacteria "Mycobacterium…
Q: Besides enterotoxin, does V. cholerae possess an endotoxin? If it does, is the toxin a significant…
A: Cholera is an infection by the bacterium Vibro cholerae, it causes fluid loss from the body in the…
Q: What is the hemolysis, Lancefield group, and disease caused by Streptococcus pygones?
A: Hemolysis is the destruction of RBC's or blood cells and this lysis may be caused due to many…
Q: Describe the process of infection by Mycobacteriumtuberculosis. Does infection always lead to…
A: Mycobacterium tuberculosis causes tuberculosis in humans. The causative agent of this disease is a…
Q: Why is it clinically important to distinguish S. pneumoniae from otherα-hemolytic streptococci?
A: S. pneumoniae: Streptococus pneumonia (pneumococcus) is a gram positive bacteria, which is…
Q: Why is the coagulase test considered to be the definitive test for S. aureus?
A: Staphylococci are gram-positive spherical bacteria that divide in more than one plane to form…
Q: Discuss the major mechanism of pathogenesis fortetanus and define measures for prevention…
A: Pathogenicity represents a specialization in a certain microorganism to replicate and damage host…
Q: What is the virulence factor of Mycobacterium tuberculosis
A: Virulence factors are specific molecules of pathogenic organisms that cause the invasion against the…
Q: What is the difference of cytotoxin and enterotoxin of Salmonella typhi?
A: A cytotoxin is defined as “a poison that damages cells”. Cytotoxins can be either chemical or…
Q: What are someprophylactic measures againstascariasis?
A: Ascariasis is an intestinal infection caused by Ascaris lumbricoides, which is a species of…
Q: What is the causative agent of Lyme disease and how is it transmitted to humans? What preventative…
A: Lyme disease comes under the category of infectious diseases and is caused by the bacteria Borrelia…
Q: What virulence factor, present in Streptococcuspneumoniae but absent from Salmonella enterica,…
A: A disease is a state of unhealthiness of the physical body, mind and social interaction. A disease…
Q: Which microorganism is used to produce hepatitis B Vaccine?
A: Vaccines are a type of biological preparations that provides the host organism with artificial…
Q: What major virulence factors are produced by Salmonella?
A: The ability of the pathogen to multiply within the host or the degree of pathology caused by the…
Q: Name two underlying conditions that predispose a person to Streptococcus pyogenes flesh-eating…
A: Microbes are actually visible under the microscope only. Most of them are found to be severely…
Q: What activities would be associated with an increased risk ofHistoplasma capsulatum infection?
A: Histoplasmosis is a kind of lung infection and is caused by inhalation of fungus spores of…
Q: What is the causative agent of bacterial vaginosis (BV)?
A: Any abnormal condition that hinders normal body functioning is considered a disease. Microbial…
Q: Discuss the following virulence factors: collagenase, hemolysin, siderophore. For each, explain the…
A: Please follow step 2 for detailed explanation
Q: What blood cell type does vivax infect?
A: Plasmodium vivax is a protozoal parasite and a human pathogen This parasite is the responsible for…
Q: What is the cause of infectious mononucleosis (IM)?
A: Infectious mononucleosis is a contagious disease. It is also termed as Mono. It is usually prevalent…
Q: Where is Rocky Mountain spotted fever commonly found? Whatsymptoms and activities would justify…
A: Rickettsia rickettsii infection causes Rocky mounted spotted fever. Rickettsia rickettsii is…
Q: What is cause of Creutzfeldt–Jakob disease in humans ?
A: Creutzfeldt-Jakob disease is defined as a rapidly progressive, neurodegenerative, and fatal…
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: Explain why people in certain occupations are at increased risk ofbecoming infected with…
A: Erysipelothrix rhusiopathiae is a pathogen that causes skin infection, and rarely, septicemia, and…
Q: what is the host response to the infection of clostridium tetani and what is the pathogenesis of…
A: Clostridium tetani is the causative agent of the disease called tetanus. This is a bacillus…
Q: What are the the host immune defenses that the Bordetella pertussis, Streptococcus pneumoniae,…
A: Immune system has a defense mechanism against microbial infection which has to be overcome by the…
Q: Which body cells or tissues are affected by hemolysins, leukocidins,hyaluronidase, kinases, tetanus…
A: The human body is a well built machine in which all the organs coordinate together to make it work.…
Q: What role does the spleen play during a malaria infection? How does this contribute to some of the…
A: Malaria is a disease caused by protozoan parasites of the Plasmodium group. It is characterised by a…
Q: How does Salmonella typhimurium avoid being killed by phagocytes.
A: Salmonella manipulates inflammatory pathways and the autophagy process. Salmonella evades the…
Q: How Liquefactive necrosis can generate disease ? please Explain at your own words
A: Necrosis refers to the unprogrammed, premature death of cells in living tissue (autolysis) due to…
Q: Where is Rocky Mountain spotted fever commonly found? What symptoms and activities would justify…
A: Rocky mountain fever is caused by bacteria of the Rickettsia species. This can be spread by the…
Q: What species of Pseudomonas is a common cause of lunginfection in cystic fibrosis patients?
A: Cystic fibrosis (CF) is a hereditary disease that affects the lungs and digestive system. The body…
Q: Where is the portal of exit of Legionellosis (Legionnaires disease) and what are its hosts?
A: The pathway via which a pathogen departs its host is known as the portal of exit. The pathogen's…
Q: What are the Characteristics that set serum sickness and the Arthus reaction apart from anaphylaxis?
A: Introduction: Serum sickness, Arthurs reaction, and Anaphylaxis are all allergic reactions but the…
Q: What is the difference between C. diphtheriae infection andtoxemia?
A: Answer: Introduction: Diphtheria is a serious nose infection caused by strains of bacterial toxin…
Q: What is Immunization and how does this controls the spread of the diseas?
A: Immunization It is defined as the process in which an individual is made immune or resistant to an…
Q: are Large numbers of gram-negative rods in the blood primary or seondary type of infection? and what…
A: The bacteria are classified into Gram-positive and Gram-negative based on their cell wall structure.…
Q: what are the immunologic/serologic manifestations of streptococcal toxic shock syndrome?
A: Streptococcus toxic shock syndrome (TSS) is a condition in which the entire organ system collapses,…
Q: what are the mechanisms of antibiotic resistance of mycobacterium tuberculosis?
A: Antibiotic resistance occurs when the microorganisms such as bacteria and fungi can stop the drugs…
Q: Why is erysipeloid an occupation-associated infection?
A: A condition when any foreign organisms invade the body of another organism and causes disease is…
Q: explain the public health measures that governments can undertake to stop the spread of the Neisseri…
A: Neisseria meningitidis is the bacteria responsible for meningococcal diseases. It spreads through…
Q: What are the Common allergens classified by portal of entry?
A: A material that can produce an allergic reaction is referred to as an allergen. The immune system of…
Q: What is the normal habitat of Staphylococcus aureus? Howdoes S. aureus spread from person to person?
A: Staphylococcus aureus is a Gram-positive, round-shaped bacterium that is a member of the Firmicutes.…
Pathogenicity
Infection and Transmission
The infections are generated by the pathogenic organisms present in the environment. They maintain the capacity to invade a host body and establish colonies. A disease caused by such infectious agents is called a communicable disease or transmissible disease. These diseases spread through diverse means including blood, food, water, air, or vectors.
What is the role of coagulase in the pathogenesis of S. aureus?
Coagulase is a proteinaceous enzyme.
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Solved in 2 steps
- What is the difference between C. diphtheriae infection andtoxemia?What are the virulence factors of Salmonella typhi? Explain each factors in simple terms.What is the causative agent of Lyme disease and how is it transmitted to humans? What preventative measures can an individual take to avoid infection?
- What virulence factor, present in Streptococcuspneumoniae but absent from Salmonella enterica, makesS. pneumoniae so highly virulent for mice?Name two underlying conditions that predispose a person to Streptococcus pyogenes flesh-eating disease.What are the pathologic effects of Mycoplasma pneumoniae?