Mastering Microbiology Ch 22

The most effective control of mosquito-borne disease is

elimination of the mosquito population.

Improved water sanitation and hygiene services are listed in the Big Picture activity as a method of prevention for NTDs. Why is water sanitation a possible method of prevention?

The ability to bathe in clean water can help in the reduction of disease transmission.

Post-mortem brain tissue biopsy shows the following: There is a photo of the brain tissue biopsy. There is a tissue with blood vessels and inflammation around one of the vessels. Eosinophilic aggregation is highlighted. What is indicated by the arrow?

a Negri body

It is time to confirm your diagnosis. Select the best samples to accurately confirm a diagnosis of rabies in your patient. Select all that apply.

a. saliva b. neck tissue biopsy d. CSF

Fill in the correct form of rabies.

furious

Encephalitis is more common in the summer months because

mosquito populations increase.

All of the following are true of poliomyelitis EXCEPT

most cases result in muscle paralysis.

Naegleria fowleri meningoencephalitis is commonly acquired by

swimming in warm ponds or streams.

Fill in ONE diagnostic method that will allow you to accurately confirm your diagnosis.

DFA Test

Your DFA results come back positive for rabies. You have already started your patient on PEP; however, she continues to deteriorate. Her kidneys show signs of failure, and her respiration, heart rate, and blood pressure are gradually decreasing. You place her on mechanical ventilation and dialysis. What options do you have left to treat her condition?

Induce an extended coma.

Given the preliminary diagnosis of furious rabies, how should you proceed with the nurse who your patient bit?

Initiate PEP.

Which of the following is an accurate description of Cryptococcus neoformans?

It is a fungus found in dried pigeon droppings. When inhaled, it is especially dangerous to immunocompromised individuals and can cause fatal meningitis.

Whitney went on a mission trip to Africa with her church group. They visited for two weeks and worked with doctors in the area to provide information about tropical diseases and the availability of treatment and vaccines. About a month after returning home, she started having headaches, fever, and severe joint pain. She went to the doctor and was diagnosed with African sleeping sickness. What is the causative agent of this disease?

Trypanosoma brucei

The Big Picture Activity mentions multiple strategies for reducing the incidence of NTD. Which of the following would you recommend as a successful strategy for preventing the transmission of African sleeping sickness?

preventing contact with insects such as mosquitoes, kissing bugs, fleas, etc., through the use of chemicals

Each of the following is caused by prions EXCEPT

rabies

Your first instinct is that your patient has ______. Use your patient's medical history and symptoms to form a hypothesis about your patient's disease. Select as many answers as are applicable.

rabies

As mentioned previously, African sleeping sickness is transmitted via a biological vector. Which of the following vectors is responsible for transmitting Trypanosoma brucei?

tsetse fly