Brini
Future Irene Adler
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- Aug 28, 2008
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About the extra DNA: I know some feel that it may be due to sloppiness on the techs part,but I want to point out something.
We have a tracking dog [see siggie]. We had to train to learn to track with him.The way they track is by following our continuously shedding skin cells.They can pick up that teeny tiny scent.
My point is ,everyone has continuously shedding skin cells that contain dna.It goes beyond a tech just wearing gloves ,IMO. Their entire body,face,hair,everything ,would have to be covered to insure no shedding skin cells came into contact with the adhesive on that tape.I'm not sure what they wear,but it may be ,near impossible,to avoid ANY cross contamination.JMO
It IS impossible to avoid cross-contamination. That's why people who work in sterile industrys have to wear caps-- like food production workers and surgeons.
Surgeons and some others who work in sterile industries also have to wear sterile gowns, gloves, masks, and booties, to contain skin and hair shed.
Normal rate of shed is about 50-100 hairs per person, per day. (out of an average of 100,000-150,000 head hairs).
Nurses who work in laminar flow also have to wear panyhose, to avoid body hair fallout. We shed skin cells and hair all the time.
In fact, my microbiology prof told me that a major component of common house dust is dead skin cells.