9. What is the best way to prevent transmission of MRSA,...

9. What is the best way to prevent transmission of MRSA, whether in a clinical setting or out in the community? Note: consider the body location from which you isolated the Staphylococcus 10. You suspect a child to have strep throat, caused by Streptococcus pyogenes. If you were to prepare a culture using a sample from a child's very red sore throat, what medium would you use and what results would you look for? 11. What is the difference between alpha hemolysis and beta hemolysis (in terms of what happens to the red blood cells)? 12. Explain the biochemical basis for the catalase test? In other words, what chemical reaction happens in positive reactions which allows you to determine the result?

Transcript

00:01 The question that is given over here, it has given a paragraph.

00:05 After reading the paragraph, we have to answer each of the question that is given below.

00:10 The paragraph says that for several weeks, the faculty, students and the staff at reborn high school have been dealing with the epidemic of unslightly painful boils and skin infections.

00:23 Over 40 athletes have been two -sword -to -place sports and 13 students have been hospitalized.

00:30 Nurses take clinical samples of the drainage of the infections from the hospitalized students and they isolated the bacterial colonies to be circular convicts and they are golden in color.

00:47 This bacterium is a gram positive one and it is mesophilic and then they are facultatively halophilic and they grow with or without the oxygen.

01:04 The first question says that we have to find out what bacteria.

01:07 Does cause this infection.

01:10 The right answer for this question is cephylococcus aureus is the bacterium that causes this infection because the cephylococcus orius colonies or circular cornwigs and in elevation it produces the cephylozampting pigment and this gives the golden yellow color to the colonies.

01:35 Also it is a gram positive one and they are mesotholic in nature and then this second part of this question it says that what does the term facultatively halophilic means facultatively halophilic means it does not require high salt concentration for the growth to happen but it can survive and reproduce even at a very high concentration they can survive both in a normal as well as in a salt concentration conditions.

02:27 And then the third part of the question, it says that what is the bacterium's oxygen requirement or what is its category we have to explain this...

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