Published Date: 2007-03-08 15:00:02
Subject: PRO/AH/EDR> Salmonellosis, eggs - Australia (QLD) (03)
Archive Number: 20070308.0821
SALMONELLOSIS, EGGS - AUSTRALIA (QUEENSLAND) (03)
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Date: Thu 8 Mar 2007
From: Linda Selvey <Linda_Selvey@health.qld.gov.au>
Re: ProMED-mail posting Salmonellosis, eggs - Australia (QLD): recall
20070303.0749
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This posting refers to a Sydney Morning Herald article which quotes
me in relation to the recall of eggs from a particular company in
Queensland, following their supply of cracked and dirty eggs and
links to a number of salmonella cases over several months.
Moderator LL states that 'The serotype of salmonellosis in this
cluster is not reported. Salmonellosis is often thought to be
associated with cracked eggs or eggs dirty with fecal matter, a
problem controlled by cleaning procedures implemented in the egg
industry. It is clearly the case, however, that most of the
salmonellosis outbreaks linked to eggs were associated with
uncracked, disinfected Grade A eggs, or foods containing such eggs.
The undamaged eggs become contaminated during ovulation, and thus
were contaminated with the bacteria before the egg shell was formed.'
This posting may lead readers to erroneously conclude that the
Queensland situation is an example of transovarial transmission. In
fact, the human cases referred to are of _Salmonella typhimurium_
[phage type] 197. Transovarial transmission almost uniquely involves
_Salmonella enteritidis_ (De Buck J. et al. Colonization of the
chicken reproductive tract and egg contamination by _Salmonella_. J
Appl Microbiol 2004; 97: 233-45). To my knowledge all outbreaks of
salmonella in Australia, to date, have been linked to the sale of
cracked or dirty eggs, as is the case in this instance.
--
Dr. Linda Selvey
Senior Director, Population Health
Queensland
Australia
<Linda_Selvey@health.qld.gov.au>
[ProMED-mail thanks Dr. Selvey for her comments and supplying the
serotype involved. The moderator's comments were not meant to imply
that the outbreak was associated with undamaged eggs. - Mod.LL]
See Also
Salmonellosis, eggs - Australia (QLD) (02): background 20070305.0771Salmonellosis, eggs - Australia (QLD): recall 20070303.0749
2006
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Salmonellosis, serotype Litchfield, papaya - Australia (WA) 20061201.3397
Salmonella Saint-Paul, melon - Australia (Eastern) 20061028.3086
Salmonellosis, raw pasta - Australia (SA) 20060617.1682
Salmonellosis, sprouts - Australia (WA): recall 20060221.0567
2005
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Salmonellosis, raw eggs - Australia (TAS) 20051209.3556
Salmonellosis, bakeries - Australia (TAS) (02) 20051016.3019
Salmonellosis, bakeries - Australia (Tasmania) 20051011.2960
Salmonellosis, visiting students - Australia (QLD) 20050713.1995
Salmonellosis, food-borne - Australia (VIC) (05) 20050127.0298
Salmonellosis, food-borne - Australia (VIC) 20050122.0231
Gastroenteritis - Australia (Victoria): salmonellosis susp, RFI 20050121.0208
2004
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Salmonella, eggs - UK ex Spain 20041019.2835
E. coli O157, cantaloupes - USA (MT) 20040722.1997
2003
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Salmonellosis, sesame seed prod. - Australia (NSW) 20030407.0847
2002
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Salmonella poona, cantaloupes - USA, Canada (02) 20021123.5884
Salmonella poona, cantaloupes - USA, Canada: recall 20020512.4181
1998
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Salmonella oranienburg, ice cream - Australia (05) 19980630.1209
Salmonella oranienburg, ice cream - Australia 19980612.1113
....................ll/mj/mpp
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