The independent investigations some 70 years ago by E. G. D. Murray
and colleagues in Cambridge (UK) and J, H. H. Pirie in Johannesburg
(South Mrica) resulted in the first detailed descriptions of
listeriosis (in both instances in small animals), together with the
isolation and naming of Lis teria monocytogenes. These descriptions
in 1926 and 1927 show the pre cision and care of these
experimentalists, for not only did they show much skill and
attention to detail but also great insight in surmising that the
consumption of contaminated food was associated with the trans
mission of listeriosis. In the words of Pirie in 1927, 'Infection
can be pro duced by subcutaneous inoculation or by feeding and it
is thought that it is by feeding that the disease is spread in
nature. ' These observations were largely forgotten and listeriosis
was regarded as a rather obscure disease of animals and
occasionally humans. However, the 1980s saw dramatic changes and
the 'elevation' of Listeria to a topic of concern not only amongst
microbiologists (particularly food micro biologists) but also the
general public."
General
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