Pasteurella multocida is a common commensal microorganism found in the nasopharynx of domestic and wild animals. Humans acquire P multocida infection primarily through contact with animals or their mucous secretions. P multocida is infrequently encountered in clinical settings, and it is considered as a zoonotic pathogen. In this study, we present an interesting case of septic arthritis and bacteremia caused by P multocida in a 62-year-old patient. The patient was treated with surgical procedures and antibiotic therapy, which made significant improvement. This case study highlights the importance of P multocida in causing zoonotic infection in humans.

Bacterial keratitis is an infection of the cornea. This kind of infection can progress quickly and if left untreated, it can eventually cause complete blindness. While Staphylococcus aureus and Pseudomonas aeruginosa are most commonly responsible for this type of infection in the United States, Nocardia spp. is rarely encountered. Here we describe an interesting case of Nocardia farcinica keratitis in a 31-year-old male patient having an extended wear of contact lenses. The patient presented at the emergency department with irritation, foreign body sensation, redness, and pain of his left eye. Nocardia farcinica was isolated from a corneal scraping specimen, and determined by sequencing a region of 16S rRNA gene. The patient had antimicrobial therapy with good improvement. We highlight the important role of Nocardia farcinica in causing keratitis, and its accurate and timely diagnosis is needed to avoid poor visual outcomes.