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SAMPLING OF EGG PRODUCTS 1960
Sampling of egg products to determine possible contamination
by Salmonella organisms was continued during 1960. In order to
obtain a punctual examination and rapid decision, the importers
paid for a considerable number of samples to be examined.
The method of sampling was by batch numbers (signifying
packing dates and factories). Where a sample showed evidence of
contamination the whole batch was placed under detention and
later either re-exported or released for pasteurisation and high
temperature baking.
The main importations were of frozen whole egg of which the
chief exporters were Australia, China and South Africa and laboratory
results showed that 9·2% of the samples taken from these
consignments contained Salmonellae. The total number of
samples from all egg products found to be contaminated was 440
and the following table shows the type of contamination:-
No.of
samples
Salmonella aberdeen 21
Salmonella anatum 9
Salmonella bareilly 37
Salmonella bloemfontein 1
Salmonella bovis morbificans 4
Salmonella Cambridge 1
Salmonella derby 2
Salmonella dublin 1
Salmonella enteritidis 1
Salmonella heidelberg 1
Salmonella hessarek 1
Salmonella meleagridis 1
Salmonella meleagridis and potsdam 1
Salmonella mikawasima 7
Salmonella mississippi 1
Salmonella montevideo 2
Salmonella muenchen 1
Salmonella newport 7
Salmonella norwich 1
Salmonella nyborg 2
Salmonella paratyphi B. 75
Salmonella potsdam 30
Salmonella st. Paul 1
Salmonella san diego 1
Salmonella senftenberg 2
Salmonella thompson 55
Salmonella typhi-murium 166
salmonella virchow 4
Unidentified Salmonella 4
440
The samples of paratyphi B. include a considerable number of
samples taken at the request of the Central Public Health Laboratory
from egg known to be contaminated.