An elderly man with influenza acquires a case of pneumonia. Gram-positive cocci isolated from hissputum give beta-hemolysis on blood agar. The infection is very difficult to treat. Later, it is shownthat the man shared the room with a patient with bone infection. Isolates from both infections werethe same.a. Describe 2 biochemical tests that can be used for the definitive diagnosis.b. Describe 2 virulence factors of this pathogen and implicate them in diseases.

Staphylococcus aureus (S. aureus) is a bacteria that causes a variety of illnesses. This strain has…

Answered: An elderly man with influenza acquires…

Body Structures & Functions Updated

13th Edition

ISBN:9780357191606

Author:Scott

Publisher:Scott

Chapter16: Infection Control And Standard Precautions

Section: Chapter Questions

Problem 5ATC

See similar textbooks

Similar questions

The organism tested on Blood Agar (plate shown furthest to the left) is: a. Micrococccus luteus b. Staphylococcus aureus. c. Staphylococcus epidermidis You know because of which specific features of the hemolytic reaction
the following are the steps, listed in random order, for utilizing koch's postulates. what should be the second step out of the four listed? a. a microorganism is found to be present in every case of a disease. b. the same microbe discovered previously is isolated from the purposely infected host c. the pathogen is isolated and grown in pure culture d. the same disease results after isolated organism is inoculated into healthy host
Not only is blood agar an enriched medium that can support fastidious organism growth, but it can also serve as a differential medium in the identification of streptococcal species because of the presence of red blood cells that can be destroyed by an organism's hemolysins. Looking at this photo, how could you describe the organism growing on the surface of this blood agar plate? Multiple Choice a) Gamma-hemolytic b) Alpha-hemolytic c) Non-hemolytic d) Beta-hemolytic
Before development of a vaccine against this microbe, thedisease it caused accounted for two-thirds of bacterial meningi-tis cases during the first year of life but is still the number oneleading cause of mental retardation in patients who survive seri-ous disease due to permanent central nervous system disorders.What is the microorganism?(a) Haemophilus influenzae type B(b) Haemophilus influenzae type A(c) Neisseria meningitidis(d) Streptococcus pneumoniae(e) Listeria monocytogenes
The isolation of Salmonella Typhimurium and S.Typhi require different protocols: A) In what aspects do these protocols differ? B) why do these protocols differ? C) How will you be able to distinguish between these organisms on XLD and Hektoen Agar?
Which type(s) of medium would be used in each scenario?a. isolating the growth of Streptococcus pyogenes from a patient’s throat swabb. isolating a pathogen from a patient’s clean-catch urine samplec. isolating enteric bacteria such as Escherichia coli from a sample oforganically grown spinach d. maintaining a patient’s nasal swab specimen for further analysis andidentifi cation of possible respiratory syncytial virus (RSV) infection
An outbreak of Methicillin-resistant Staphylococcus aureus (MRSA) in the surgical ward at the hospital forces the hospital administrator to cancel and postpone all non-essential surgeries until the source of infection has been located and for measure put into place. Bacterial samples obtained from swab of wad staff equipment and surfaces arr brought to the lab for analysis. 1. What testing method will you employ to determine the level of exposure? 2 How would a positive test present? 3. How would a negative test present? 4. What recommendations would you make in your report?
The patient, who presented with complaints such as sore throat, fever, weakness, and swollen tonsils, was examined by an ear, nose and throat doctor. Having diagnosed the patient with Streptococcus pyogenes pharyngitis, the doctor requested a throat culture from the patient to confirm the accuracy of the diagnosis. a. In which environment does the Laborant develop Streptococcus pyogenes in the throat culture taken from the patient with a swab? Explain by explaining. b. Laborant is Strep in mixed culture, which is formed as a result of throat culture that he developed (cultivated). Using which methods to analyze and determine pyogenes phenotypically? c. Phenotypically detected Strep. The laboratory technician, who differentiates the pyogenes from other bacterial species in the environment, develops the bacteria in which specific environment using which method? Explain by explaining.
Which ONE of the following is not taken into consideration when determining the ‘clinical breakpoint’? Select one: A. The drug MIC distribution for the wild-type bacterial population B. The microbiological outcome C. The drug Cmax value D. Pharmacodynamical parameters E. Elimination half-life of the drug
During this outbreak, some people sickened with listeriosis testedpositive for Listeria monocytogenes in their bloodstream, but a DNAprofile of the bacterium showed that it was not the outbreak strain.What likely conclusion can be drawn from this information?a. It is a false positive. b. The person is not part of the outbreak.c. Listeria monocytogenes mutates frequently, making DNAprofiling unreliable.d. The person has already begun to recover from the disease.
Observe the results from a disc-diffusion experiment below. Which antibiotic would you prescribe to a patient with a similar Staphylococci infection? The patient has no known allergies or contraindications for broad-spectrum antibiotics. Remember to use the table above to determine if the bacteria are resistant, susceptible or intermediate. a. Tetracycline b. Streptomycin c. Penicillin d. Norfloxacin
a recent communicable disease outbreak, except COVID-19. For the selected communicable disease outbreak, the following MUST be clearly identified: a) a description of yellow fever b) who was affected c) location of the outbreak d) the When (time) e) Why the outbreak occurred (fully described what was the cause). f) Provide relevant data and appropriate references.

SEE MORE QUESTIONS

Recommended textbooks for you

Body Structures & Functions Updated

Biology

ISBN:

9780357191606

Author:

Scott

Publisher:

Cengage

Curren'S Math For Meds: Dosages & Sol

Nursing

ISBN:

9781305143531

Author:

CURREN

Publisher:

Cengage

Body Structures & Functions Updated

Biology

ISBN:

9780357191606

Author:

Scott

Publisher:

Cengage

Curren'S Math For Meds: Dosages & Sol

Nursing

ISBN:

9781305143531

Author:

CURREN

Publisher:

Cengage

SEE MORE TEXTBOOKS