Saturday, April 8, 2017

Apa Itu Demodex ?

1) Apa itu DEMODEX ?
Demodex is a genus of tiny commensal mites that live in or near hair follicles of mammals.

2) Ada berapa sepsis Demodex ?
Around 65 species of Demodex are known.

3) Berapa spesis yang ditemui hidup pada tubuh badan manusia ?
Two species living on humans have been identified namely Demodex folliculorum and Demodex brevis, both frequently referred to as eyelash mites.

(3.1)Demodex folliculorum
is a species of face mite. D. folliculorum is one of
the parasitic/commensal face mites that occur on people (the other one
is Demodex brevis).

When large numbers of D. folliculorum are found on humans, the
infestation is known as demodicosis.

(3.2) Demodex brevis
is one of the two species of face mite that afflict humans (the other
being Demodex folliculorum). They are very similar to Demodex
folliculorum, with just a few differences.

They are usually found in the sebaceous glands of the human body. The same way that D. folliculorum reproduces in the follicles, D. brevis reproduces in the sebaceous glands.

Under normal conditions they are not harmful, and are considered to be commensals (the mite benefits but there is no harm or benefit to the host) rather than parasites (where the host is harmed) or symbionts (where the host is benefitted).

During a severe infestation, though, there may be adverse effects on the host, such as demodicosis.

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