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Salmonella Infantis (S. Infantis) has apparently come to poultry production to stay…
The great diversity exhibited by Salmonella spp (S.) is one of the most critical characteristics that must be considered for its control. While it is true that more than 1,500 serotypes are now included in subspecies enterica, it has been postulated that perhaps 100 are actually important to public or animal health.
However, these relatively few serotypes present a high challenge for controlling this bacterium in poultry production since there is significant variation in their importance depending on the country, the region, and even the particularities of each company.
Serotyping of a Salmonella spp isolates frequently yields results related to a serotype with a “rare” name, which had not been previously identified, and which is challenging to identify again later. But, then, it practically disappears without leaving a trace! This is not the case for S. infantis, which has come to poultry production to stay.
The presence of S. Infantis implies a high risk to public health and, occasionally, to birds’ health.