Metronidazole desensitization is recommended in patients with trichomoniasis and history of an allergic reaction to metronidazole due to presumed cross reactivity with tinidazole and lack of reliably safe and effective alternative therapies. We report our experiences in a patient with persistent trichomoniasis who failed to complete metronidazole desensitization due to a burning sensation over her whole body and pruritus but was later successfully desensitized to tinidazole without experiencing any adverse effects.

Bordetella bronchiseptica infections may be overlooked by clinicians due to the uncommon encounter of this pathogen in humans and common isolation of co-pathogens. However, the isolation of B. bronchiseptica in immunocompromised individuals may represent a true infection. We report our experience with the fatal case of a stem cell transplant recipient, co-infected with SARS-CoV-2 and B. bronchiseptica, who was considered fully vaccinated (two doses) at the time of her case in spring 2021. Future studies are needed to evaluate the incidence of bacterial co-infections in immunosuppressed individuals with SARS-CoV-2 and clinicians should remain cognizant of the potential pathogenic role of uncommon pathogens isolated in these individuals.