Achromobacter is a genus of non-fermenting gram-negative bacteria, mainly isolated from the respiratory tract of people with cystic fibrosis, but recognized as the causal agent of different types of infections, especially in individuals and with chronic diseases and immune deficiency. Skin infections are very rare and not easy to manage also due to the intrinsic resistance to various antibiotics empirically used in the treatment of skin infections. In this short report, we intend to describe a rare case of Achromobacter denitrificans cellulitis with the result of an analysis of the cases described in the literature.

Pasteurella multocida, a gram-negative coccobacillus, part of the normal oral flora of many domestic and wild mammals, has been described a widespread veterinary pathogen and has the potential to cause zoonotic infections in humans resulting from injuries caused by household or wild pets. Skin and soft tissue infections following a cat or dog bite are the more common manifestations of human infection. Salivary gland infections are somewhat common and viral infections, such as mumps, and bacterial infections may affect the submandibular glands. To our knowledge, this is the first reported case of submandibular gland abscess caused by P. multocida in a patient without pet contact.

We report a case series of fatal invasive diseases due to Staphylococcus caprae. We describe the first cases of S. caprae sepsis in two italian patients. In the first patient there was also evidence of the fourth case reported in the English language literature of mitral endocarditis. We also discuss the main features of differential diagnosis on the basis of a literature review.

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