RE: [Histonet] Slides & blocks - Biohazard?
You should be reviewing documents from your home base, UK, before commenting
Unless infected tissue is post-fixed in formic acid for 1 hour, and then
further fixed in formalin, it is still considered infectious. Shavings from
a CJD case must then be collected, bagged and incinerated.
However, once a section has been coverslipped and sealed, and then the slide
wiped with a recommended disinfectant, eg sodium hypochlorite (20,000ppm
available chlorine), it is considered safe and should be treated as you
would a normal slide.
Incidentally, tissue and fluids from the female reproductive tract are not
classified as being infectious; although placenta is classed as being of low
infectivity and should be incinerated.
Director of Anatomic Pathology
Bon Secours HealthPartners Laboratories
5801 Bremo Road
Richmond, VA 23226
(804) 287 7972
(804) 287 7906 - fax
From: kevin williams [mailto:email@example.com]
Sent: Wednesday, May 19, 2004 2:35 PM
To: Jackie.O'Connor@abbott.com; firstname.lastname@example.org
Subject: RE: [Histonet] Slides & blocks - Biohazard?
Prions, are not regulations and if these are going into land fill,
surly the odd tampon has more prions than shavings.
>To: "kevin williams"
>CC: email@example.com, Rcartun@harthosp.org
>Subject: RE: [Histonet] Slides & blocks - Biohazard?
>Date: Tue, 18 May 2004 09:49:55 -0500
>Sent by: firstname.lastname@example.org
>05/18/2004 09:31 AM
> To: Rcartun@harthosp.org, email@example.com
> Subject: RE: [Histonet] Slides & blocks - Biohazard?
> Dear Richard:
> I have been told that shavings are not Biohazard, because they
> been processed, so how can a single "shaving" on a slide be
> Yours faithfully,
> A. Kevin Williams
> >From: "Richard Cartun"
> >Subject: [Histonet] Slides & blocks - Biohazard?
> >Date: Mon, 17 May 2004 14:22:21 -0400
> >Are glass microscopic slides and paraffin tissue blocks
> >"biohazards"? We occasionally receive either unstained slides
> >paraffin tissue block in a "Biohazard" bag from another
> >special testing. Technically speaking, the only personnel
> >handle those materials would be those individuals wearing
> >Richard Cartun
> >Histonet mailing list
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