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Wiki Markup*{+}Background:+* _Salmonella enterica subsp. enterica_ serovar Ball (antigenic formula 1,4,\[5\],12,\[27\]:y:e,n,x) is a serovar of the O:4 (B) serogroup. This is a very rare serovar; one report in Italy found _S._ Ball in wild boars and a recent report identified this serovar in black pepper from Hungary.

Animal reservoir: Not clear

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