Below are links to the Swab recovery Studies. You may have seen the
Kings College Report (presented at AACC in 2003) before, but it is a good
independent study, based on the M40 criteria, but using 30 different
wild-type strains of GC, representing the kind of real-life samples a swab
would have to deal with. There is another study based on M40, comparing a
number of swabs sold in the UK, and a new study looking at the difference in
the way organisms are released from swab buds. This is not yet formally
published, but I am sure it will be of interest to your customers. It is not
the first time this phenomenon has been observed. A commercial company here
evaluated different swabs to see which was most suitable for an assay they
were developing, and contacted us to explain why the results they obtained
with our swabs were so much better than with Copan's. Interesting indeed?
is not to produce a "special swab" called M40, but to ensure that our
standard product meets all the requirements of the M40 guidelines .
Medical Wire was
actually involved in putting together the M40 standard, and from the
beginning we have taken its provisions on board. We don't see it so much as
a special standard, but rather an indication of what a good transport swab
should do. But M40 does provide a set of criteria against which we can
measure and improve the performance of transport devices. Having been the
first company to manufacture a transport swab, it's something we take
It has also been bought to
our attention that using the words M40 on a swab, literature and code
numbering is not allowed due to another commercial company already using
such an item as a trade mark. Therefore Copan remove the wording M40 from
it's swab, literature and product code.
Should you require any further information please do not hesitate to contact
Sales & Marketing Manager
Medical Wire & Equipment Co
Evaluation Of MW171
Uptake and Release of Organisms by different swab types.