B2. Ectoparasites 1G

Question 1

What is Cimex lectularius ?

Answer 1

Bed bugs (blood sucking insects)

Question 2

What are the signs and symptoms of bed bugs ?

Answer 2

Linear itching bites

Question 3

What is the treatment of bedbugs ?

Answer 3

Cannot treat unless it is infected then treat with antibiotics and antihistamines. Topical or oral cortical steroids can also be used

Question 4

How can we prevent bed bug infestation ?

Answer 4

General hygiene

• hot linen wash, drying 60 degrees, ironing
• airing bedclothes

Question 5

What is Pulex irritants ?

Answer 5

Human fleas (blood sucking)

Question 6

What are the hosts of human fleas ?

Answer 6

Humans

Question 7

Can human fleas survive prolonged starvation

Answer 7

Yes, requires insecticide removal

Question 8

What are the signs and symptoms of human flies ?

Answer 8

Bites in clusters

Question 9

What treatment can be given to someone with flea infestation ?

Answer 9

• cold compress
• avoid scratching which can lead to secondary bacteria infection
• antihistamine to reduce swelling and itch

Question 10

Where can you catch human fleas ?

Answer 10

Pets
Public places
Soft furnishing
Crowded places

Question 11

Fleas are a ‘vector of disease’. What diseases are included ?

Answer 11

Rat: bubonic plague

Rats and cats: Murine typhus