Trombidiidae Family Characteristics Quiz

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What is the pathogenesis of Trombiculidae larvae?

They inject cytolytic enzyme and feed on partly digested tissues. (correct)

They lay eggs under the skin resulting in irritation.

They penetrate the skin and feed on blood.

They release a toxin that causes skin discoloration.

Which mite is a vector of scrub typhus?

Psorergates ovis

Pediculoides ventricosus

P.simplex

Neoschongastia philippinensis (correct)

How do chigger mites cause irritation?

By injecting toxins into the skin. (correct)

By sucking blood from the host.

By laying eggs on the skin surface.

By secreting a cooling agent on the skin.

Which mite is known as the 'red bug of US'?

T.alfreduggesi Signup and view all the answers

What is the control method recommended for trombiculid mites?

Spray 2lb/acre of toxaphene/chlordane. Signup and view all the answers

Which family of mites do not penetrate the skin and cause mild chronic inflammation?

Cheyletidae Signup and view all the answers

What is the family name of the mite that causes demodectic mange in various mammals?

Demodicidae Signup and view all the answers

Which species of Demodex mite is known to infect humans?

D.folliculorum Signup and view all the answers

What is the primary location where Demodex mites live within the host?

In the hair follicles and sebaceous glands Signup and view all the answers

Which of the following is a characteristic of the Demodex mite's appearance?

Elongated, distinct head, thorax and abdomen, cigar-shaped with 4 pairs of stumpy legs Signup and view all the answers

What is the primary reason that demodectic mange is difficult to treat?

The mites live deep within the skin, making them less accessible to topical treatments Signup and view all the answers

Which form of demodectic mange is considered the more severe?

Pustular/follicular form Signup and view all the answers