摘要：Salmonella infections due to
contaminated food products
make many people ill each
year and are responsible for substantial
economic costs. Salmonella
infections are potentially serious
and may be fatal, particularly for
the elderly and people with weak
immune systems (see box on Salmonella
infections). However, most salmonellosis
cases do not result in a
visit to a medical facility and are
never reported to public health
agencies. The high proportion of
unreported cases makes it difficult
to determine the true incidence of
salmonellosis, and has resulted in a
wide range of estimates of the
annual economic costs of foodborne
Salmonella infections.
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