Chapter-3: Case Study Home Work-2 5 Points 1. PARROT FEVER Thinking that their t
ID: 195281 • Letter: C
Question
Chapter-3: Case Study Home Work-2 5 Points 1. PARROT FEVER Thinking that their two sons should have a pet, Joe and Charlotte buy the boys cockatiels. The birds initially seem healthy but within a few weeks they appe listless. Concerned about the birds, Joe takes them to the veterinarian, who d psittacosis, otherwise known as parrot fever. The veterinarian recomm food that has been impregnated with the antibiotic tetracycline. He also tell great care while cleaning the cage for the next few weeks. Curious about t up on psittacosis. He finds that it is caused by the bacterium Chlamydia common in parrots and related birds. Pet stores that sell birds are a regular a pair of ar in iagnoses a case of active and ends giving the birds s Joe to exercise Joe reads he disease psittaci, which is most source of C. psittaci ion. Joe also learns that these bacteria are unusual in that during an infection, they are not easily destroyed by phagocytic immune system cells. How do the bacteria resist destruction by phagocytic cells? (Part & Compositi on) 2. ANTHRAX In late 2001, soon after the terrorist attacks of September 11th, the United States was in the grip of a new terror threat. Between October 4th and November 20th, twenty-two cases of anthrax were reported. Eleven of these cases were cutaneous anthrax, while eleven were pulmonary anthrax. Five of the patients who contracted pulmonary anthrax died. The source of the outbreak was traced to letters contaminated with Bacillus anthracis endospores. The le were deliberately sent by the perpetrator to a variety of prominent individuals, including members of the media and the U.S. Senate. Twenty of the 22 patients (91%) were mail handlers or others who entered workplaces where contaminated mail was processed or receive Why is Bacillus anthracis such a potent bioterrorism agent? tters new antibiotics. Antibiotic A disrupts cell membranes. Antibiotic B interferes hesis of peptidoglycan. Which of these drugs do you think is safer to use to 3. Consider two with the synt treat an infection in an animal and why?Explanation / Answer
Ans-
Some bacteria resist destruction by phagocytic cells. Macrophages are white blood cells that engulf the foreign particles by the process called phagocytosis. When Chlamydia psittaci and some other bacteria ingested by macrophages, they are able to survive in the macrophages by preventing the fusion of transport vesicle and lysosome.