Within a 3-day period at a large hospital, five patients undergoing hemodialysis developed fever and chills. Pseudomonas aeruginosa and Klebsiella pnuemoniae were isolated from three of the patients. P. aeruginosa, K. pneumoniae, and Enterobacter agglomerans were isolated from the dialysis system. Why do all three bacteria cause similar symptoms?

The images attached are the photos of bacteria in yoghurt under a misroscope. According to these images and your own knowledge, can you make a biological drawing of bacteria in yoghurt ( in a circle) and identify the types of bacteria accurately?

Characterize and give a brief description of the following bacteria:  Bacillus cereus  Clostridium difficile

If the generation time of Bacillus cereus is 28 minutes, how many cells of B. cereus will there be after an 90 minutes?

Amswer the following questions: 1. What other physiological responses may have caused the diphasic growth in E. coli? 2.Describe the methods used by microbiologists in producing synchronous cultures from unsynchronized bacterial culture.

Why are the streak plates incubated at 7°C when selecting for psychrotrophic bacteria?

I AM TRYING TO IDENTIFY THIS UNKNOWN.  ***IMAGE 1 HAS TWO PICTURE OF CATALASE TEST AND BLOOD AGAR TEST. ***IMAGE 2 HAS THREE TESTS CONDUCTED ON IT, OXIDASE, BACITRACIN AND NOVOBIOCIN. I believe it is one of the following: 1) S. pyo.    2)S. agal .     3)S.pneu.   4)E. faecalis                  5)S. aureus       6)S epi.       7)S. sapro.        8)M. luteus Please let me know which one of the above is thge unknown. You have pictures of the unkown on Catalase and Blood Agar and three test conducted on Oxidase, Bacitracin and Novobiocin. Give reasoning as why you think it will be one of the above. Explaing the characteristics and what made you deicide it?

What is the reason why we need to know if the bacteria is encapsulated or not?

A farmer working on a piece of machinery gets his shirtsleeve caught in a moving piece of the equipment. His shirt is sliced, and a sharp blade covered in mud slices through his upper arm. He attempts to control the bleeding and immediately seeks medical attention. After 3 days, he develops a fever and his arm becomes extremely swollen and painful. Pulling back the bandages, he finds that the wound has become blackened and is leaking bloody fluid. Microscopic analysis of the fluid reveals the presence of gram-positive bacilli. a. Discuss what condition the patient is suffering from and the likely causative agent of this infection. b. Explain how the patient contracted this pathogenic microbe and what virulence factors contributed to the pathogenesis seen at the wound site. c. In addition to antibiotics, the physician prescribes hyperbaric therapy. Describe what this treatment involves and how it could be therapeutic to this patient.

What are the common pathogens isolated from stool samples? What is the difference between a coliform bacterium and a noncoliform enteric bacterium? What diagnostic test differentiates Proteus and Providencia species from other Enterobacteriaceae? How would you differentiate between serotypes of E. coli? Are the gram-negative enteric bacilli fastidious organisms? Would they survive well outside of the body? If so, what significance would this have in their transmission? Why is serotyping particularly important in Salmonella infections and typhoid fever?