Peerwise microbiology

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Question 1 of 1

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A bacteria that has a cluster of flagella at each end is described as what?

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Explanation

Monotrichous = one flagellum, Amphitrichous = one flagellum at each end, Peritichous = covered in flagella

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Which of the following conditions would you likely prescribe antibiotics for?

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Hair loss is most probably due to infection with what?

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Explanation

Corporis - body, cruris - groin, pedis - foot, Unguium - nail, Capitis - scalp

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What is not a significant risk factor for developing fungal infections?

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Explanation

Long-term glucocorticoid usage and HIV+ stage will weaken the immune system. Trauma will leave openings in the skin barrier, allowing fungal spores to invade the bloodstream causing disseminated fungal infection if left untreated. Broad-spectrum antibiotic usage will wipe out the commensal bacterial population in our body, giving a competitive advantage to fungi. Vaginal yeast infection is a common side-effect of extensive antibiotic usage.

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A patient comes in with nails that curve upwards and crumble easily at edges. Upon further inspection, yellow streaks were noticed under the nail - what is the causitive organism and treatment?

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Explanation

Topical can be used but oral more effective

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Which intestinal protozoa parasites will cause B12 malabsorption, dissaccharides and lactose intolerance?

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Explanation

isopora belli has similar symptoms

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Onchocerca volvolus is what type of parasite?

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Explanation

Causes river blindness and is a nematode/round worm

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What is katayama fever also known as?

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Explanation

Also known as bilharzia

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Which of the following is a roundworm?

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Explanation

Leishmana fonovani/trypansoma brucei are protozoa, Schistoma mansoni is a flat worm and taenia solium is a tapeworm

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Which of the following is incorrect about Giardia lamblia?

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Explanation

It is an intestinal protozoan parasite that is spread by the faceo-oral route. Tsetse are biological vecctors of trypanosome a vector born protozoan parasite

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Which of the following is not an intestinal protozoan parasite?

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Explanation

Leishmania donovani is a vector borne parasite?

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Which malaria parasite has a 72 hour replication cycle?

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Explanation

P. falciprum, P. vivax, P. ovale = 48 hours cycle and P. knowlesi = 24 hour cycle

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Which stage of the plasmodium life cycle is both released from infected RBCs and hepatocytes and can infect new RBCs?

Select the correct answer(s).

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Explanation

Gametocytes - taken up by Anopheles mosquito from humans, Schizonts - contains merozoites, Sporozoites - injected into humans by Anopheles mosquito during a blood meal, infects hepatocytes, Trophozoites - feeding stage in RBC, Merozoites - infects new RBCs

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What stage of plasmodium life cycle is taken up by an infected anopheles mosquito?

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43 year old dentist present in A&E with confusion, sensory disturbance, poor coordination and disturbance of his sleep-wake cycle. When taking a social history from the friend who brought him to hospital, it is learned he went on a hunting trip to sub-saharn africa 6 weeks ago wearing a blue shit. What is the most likely diagnosis?

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Explanation

African trypanosomiasis causes sleeping sickness. It is endemic in sub-saharan africa and is particularly attracted to the colour blue.

Peerwise microbiology

Question 1 of 1

Time Left

A bacteria that has a cluster of flagella at each end is described as what?

Select the correct answer(s).

(0/0)

Explanation

Which of the following conditions would you likely prescribe antibiotics for?

Select the correct answer(s).

(0/0)

Hair loss is most probably due to infection with what?

Select the correct answer(s).

(0/0)

Explanation

What is not a significant risk factor for developing fungal infections?

Select the correct answer(s).

(0/0)

Explanation

A patient comes in with nails that curve upwards and crumble easily at edges. Upon further inspection, yellow streaks were noticed under the nail - what is the causitive organism and treatment?

Select the correct answer(s).

(0/0)

Explanation

Which intestinal protozoa parasites will cause B12 malabsorption, dissaccharides and lactose intolerance?

Select the correct answer(s).

(0/0)

Explanation

Onchocerca volvolus is what type of parasite?

Select the correct answer(s).

(0/0)

Explanation

What is katayama fever also known as?

Select the correct answer(s).

(0/0)

Explanation

Which of the following is a roundworm?

Select the correct answer(s).

(0/0)

Explanation

Which of the following is incorrect about Giardia lamblia?

Select the correct answer(s).

(0/0)

Explanation

Which of the following is not an intestinal protozoan parasite?

Select the correct answer(s).

(0/0)

Explanation

Which malaria parasite has a 72 hour replication cycle?

Select the correct answer(s).

(0/0)

Explanation

Which stage of the plasmodium life cycle is both released from infected RBCs and hepatocytes and can infect new RBCs?

Select the correct answer(s).

(0/0)

Explanation

What stage of plasmodium life cycle is taken up by an infected anopheles mosquito?

Select the correct answer(s).

(0/0)

Select the correct answer(s).

(0/0)

Explanation

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