mamamia at obscura.com
Tue Jun 10 03:15:50 EST 1997
Alberto Santos III wrote:
> Oops wrote:
> > Can anyone out there tell me what is the "face insect"
> > DEMODEX FOLLICULORUM (follicular)?
> > What is their lifecycle ?
> > How can we get infected ?
> Demodex folliculorum is, as PARIS mentioned, the human follicle mite.
> However, this mite is not limited to the eyelashes. As a mite, it isn't
> even an insect, it has four TINY pair of legs (insects have three pair),
> and their legs are two small to serve much of any purpose. Quite simply
> put, these mites live in the hair follicles (and a closely related
> species may live in the sebaceous glands of people as well -
> D. brevis). Transmission is through direct contact although certain
> fomites may be involved (sweaters, towels, pillows, etc). The
> prevalance of D. follicularum is just about universal with some texts
> stating about 25% at age 20 but near 100% by age 60. Symptoms aren't
> generally attributed to these mites, though some people think that acne
> rosacea is thought to be assocated with the mite. Some times a person
> with dermal granulomas (like a type 4 acne response) may blame the cause
> of their malady on the mites, although many people with mites fail to
> have such a reaction to them.
> Not all Demodex fail to cause disease however, the species i ndogs, D.
> canis, is responsible for demodectic mange, a type of severe skin rash
> found in dogs.
> I hope this answers your question.
> Alberto Santos III
> Graduate Student in Biology
> Southwest Texas State University
> email: AS31909 at swt.edu
Dear Paris & Alberto:
Thank you very much
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