Answers are grounded in this paper and cite their sources.
A significant proportion of a consignment of branded Parma Ham was found to have ;blown' tins; the associated bacterial flora was therefore investigated. No Salmonella or Shigella were found. Clostridium welchii type A and Clostridium bifermentans were isolated in moderate numbers only from enrichment cultures of the ham. Staphylococcus spp. and coryneform bacteria were obtained from all tins and Group D streptococci were present in a few. No food-poisoning cases were associated with this ham.
No takes yet. Share an insight, caveat, or question.
Cragg et al. (1973) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: