Zoonoses Flashcards

1
Q

What can zoonoses be caused by?

A

Virus
Bacteria
Parasite
Fungi

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2
Q

What is zoonoses?

A

Infections that can pass between living animals and humans

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3
Q

Why is malaria not a zoonoses?

A

Because even though it is transmitted from animals, they depend on the human host for part of their life cycle

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4
Q

What are bacterial examples of zoonoses?

A
Salmonella
Shigella
Anthrax
Brucella
E. coli
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5
Q

What are viral examples of zoonoses?

A
Rabies
Avian influenza
Ebola
West nile fever
Yellow fever
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6
Q

What are parasitic examples of zoonoses?

A

Toxoplasmosis

Trichinellosis

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7
Q

What are fungal examples of zoonoses?

A

Dermatophytoses

Sporotrichosis

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8
Q

What are the common zoonoeses in the UK?

A

Salmonella
Campylobacter
Toxoplasma
Ringworm

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9
Q

What is Rabies?

A

Viral infection transmitted by bite of the infected animal
Wide range of animals
Incubation = 2W to months
Travels to the brain via peripheral nerves
Causes encephalitis
-Malaise, mania and lethargy, production of saliva and tears, death bu resp failure

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10
Q

What is the diagnosis and treatment of rabies?

A

PCR of saliva or CSF

Fatal if untreated
Give post exposure prophylaxis
-HIRG 4 doses over 14 days

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11
Q

What is Brucellosis?

A

Ocupational hazard as it is in milk and placenta and foetus

Now is rare

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12
Q

What is the presentation of brucellosis?

A

Acute
-Fever, weakness, headaches, sweats and splenomegaly

Subacute
-lasts over 1 month

Chronic
-Months or years, flu like, malaise, depression, endocarditis

Subclinical
-50% have positive serology

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13
Q

What is the treatment for brucellosis?

A

Doxycycline for 2-3 months + rifampicin or gent

Add cotrimoxazole for 2 weeks

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14
Q

What is Leptospirosis?

A

Fever in cattle farmers

L hardjo

Fever, meningism, myalgia, headaches and no jaundice

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15
Q

What is done to diagnose leptospirosis?

A

Microscopic aglutination test
ELISA serology
PCR?
Culture

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16
Q

What is the treatment for leptospirosis?

A

Doxycycline for mild disease
IV penecillin for severe

Prompt dialysis
Mechanical ventilation

17
Q

What is erythema migrans?

A

3-90 days after bite = single or multiple lesions

18
Q

What is acrodermatitis chronica atroficans (ACA)?

A

Elderly people
Extensor surfaces of limvs
Bluish-red discoloration
Peripheral neuropathy common

19
Q

What is lymphocytoma?

A

Bluish solitary painless nodule

Earlobe or areola

20
Q

What are the Lyme borrelosis symptoms?

A

Transmitted by tick in summer months
Lxodes genus

Carditis
Heart block
Arthritis more common

21
Q

How do you diagnose lyme?

A

Erythema migrans = diagnosis
ACA and lymphocytoma
Serology and PCR
-Paired blood and CSF

Clinical and lab findings