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Vectors of Disease > Vectors of Disease > Flashcards

Vectors of Disease Flashcards

1
Q

What disease on the WHO TDR are transmitted by insects?

A 
African Trypanosomiasis
Chagas' Disease
Dengue Fever
Filariasis
Leishmaniasis
Malaria
Onchocerciasis
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2
Q

What are some generalizations about mosquitoes?

A

Only Females bite
Females have slim antennae
Males have bushy, thick antennae

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3
Q

What types of mosquitoes transmit disease to human?

A

Anopheles- wing spots,long palp,short siphon, bites at an angle
Culex- short palp, long siphon,bites parallel to skin
Aedes-medium siphon, single eggs
Mansonia-dark wings, vector of filiariasis

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4
Q

What is McDonald’s formula?

A

v= ma2bpN/-eNCP

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5
Q

What are the forms of insect control?

A 
Arial Spraying
Trapping Adults- used for Tsetste flies
Biological Control
Zooprophylaxis-bathing domestic animals with insecticide reduces Malaria by 90%
Releasing Sterile Males
Transgenic Mosquitoes
Draining Swamps
Bacillus Thuringenis
Use of repellants such as DEET, Picardin, Oil of Lemon Eucalyptus, ITN, Insectice treated clothes.
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6
Q

What are the life forms of ticks?

A

Eggs, larvae and nymphs.

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7
Q

What diseases are transmitted by ticks?

A 
RMSF
Lyme disease
Babesiosis
Anaplasmosis
Ehrlichiosis
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8
Q

Where are ticks found?

A

At ground level, tips of grass and shrubs.

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9
Q

How long do ticks need to remain attached to transmit disease?

A

Anaplasmosis-12-24 hrs.

Lyme Disease- 24-48 hrs.

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10
Q

What are sx of Lyme Disease?

A

HA, fever, chills, myalgiae
Rash occurs in 85%
Days to weeks- Facial Paralysis, stiff neck, cardiac ectopy, extremity pain and numbness
Weeks to Months- Fatigue and arthritis

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11
Q

How is Lyme Disease diagnosed?

A

Screen with Western Blot, Culture and PCR are definitive

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12
Q

How is Anaplasmosis transmitted?

A

tick bites and transfusion.

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13
Q

What are sx of Anaplasmosis?

A

HA, Myalgiae, HA, chills, low wbcs and platelets, elevated AST and ALT

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14
Q

What are the complications of Anaplasmosis?

A

Septic Shock, Toxic Shock,Respiratory and Renal Failure

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15
Q

How is Anaplasmosis diagnosed?

A

IFA, smear looking for Morulae, PCR

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16
Q

How is Babesiosis transmitted?

A

tick bite and transfusion.

17
Q

What are the sx of Babesiosis?

A

Fever, HA, Myalgia, Anemia, low platelets fatigue

18
Q

What are the complications of Babesiosis?

A

Respiratory, Cardiac and Renal failure. Coinfection.

19
Q

What are some facts about Powassan Virus infection?

A

Rapid onset post deer tick bite. It is a flavivirus.

20
Q

What causes Ehrlichosis?

A

E. Chaf transmitted by the lonestar tick.

21
Q

How can you prevent tick bites?

A

Walk in center of trail, 30% DEET from knees down, wear light colored, long clothing.

22
Q

How many legs do bedbugs have? What diseases do they transmit?

A

They have 6 legs. They suck blood but do not transmit any microbes.

23
Q

How many legs do lice have? what diseases do they transmit?

A

They have 6 legs. They transmit Typhus, Trench Fever, Relapsing Fever and Bacillary Angiomatosis.

24
Q

How many legs do Mites have? What diseases do they transmit?

A

They have 8 legs. They transmit Scrub Typhus and Rickettsial Pox.

25
Q

What diseases do Fleas transmit?

A 
Plague
Murine Typhus
Tungiaisis
Rat tapeworm
Dipyllidium Caninum
26
Q

What diseases do Ticks transmit?

A 
RMSF
Borreliosis
Babesiosis
Ehrlichiosis
Anaplasmosis
Lyme Disease
African Tick Bite fever
Tick Borne Encephalitis
27
Q

What disease does Glossina(Tse tse)flies transmit?

A

African Trypanosomiaisis

28
Q

What disease does Simulium(Blackflies) transmit?

A

River Blindness

29
Q

What diseases does Chrysops transmit?

A

Tularemia, Loaloa

30
Q

What disease does Phlebotmus/Lutzomya transmit?

A

Bartonellosis, Oroya fever, Carrion’s Disease, Sandfly fever, Rift Valley Fever

31
Q

What disease does the reduvit Bug transmit?

A

Chagas’ Disease

32
Q

What disease is transmitted by the Anopheles Mosquito?

A

Malaria

33
Q

What disease is transmitted by the Aedes, esp. Albopictus, Mosquito?

A

Yellow Fever

Dengue Fever

34
Q

What disease is transmitted by the Culex mosquito?

A

West Nile Virus

Japanese Encephalitis

35
Q

What is the duration of 30% DEET? What is Ultrathon?

A

4 to 6 hours. Ultrathon is a long acting DEET which works against S. Mansoni.

36
Q

What is the duration of 20% Picardin?

A

6 to 8 hours. There is no smell.

37
Q

What are some things to know about .5% Permethrin?

A

It binds to fabric and dergades with UV light.mix by adding 5 parts of water to 1 part of permethrin. It is effective against mites.

Vectors of Disease (1 decks)

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