Coinfection of SARS-CoV-2/Mycobacterium tuberculosis (MTB) in patients with HIV/AIDS has not been previously reported. Here, we present two cases of coinfection of SARS-CoV-2 and MTB in patients with HIV. The first case is a 39-year-old patient who was admitted with a 7-day history of fever, myalgia, headache, and cough. The second patient is a 43-year-old man who had a 1-month history of cough with hemoptoic sputum, evolving to mild respiratory distress in the last 7 days. Both patients already had pulmonary tuberculosis and subsequently developed SARS-CoV-2 infection during the 2020 pandemic. Nonadherence to antiretroviral treatment may have been a factor in the clinical worsening of the patients.

The global pandemic of COVID-19 is caused by the novel coronavirus SARS-CoV-2, which often causes flu-like symptoms and can progress to severe respiratory illness. Thus, as the disease spreads, COVID-19 cases have multiplied across the world, and manifestations involving multiple systems have been described. We report a case of COVID-19-associated meningoencephalitis in a Brazilian male patient who presented with seizures and altered mental status. To the best of our knowledge, this is the first reported case of COVID-19-associated meningoencephalitis in Brazil. COVID-19-associated meningoencephalitis is a rare manifestation of this viral infection and clinicians should be aware of this possible complication.

Objective: Describe the main invasive fungal infections (IFIs) after kidney and liver transplantation at a referral center, as well as their evolution, treatment, and clinical features. Material and Methods: This was a retrospective, observational, descriptive, case series study involving IFIs diagnosed between January 2012 and December 2019 in kidney and liver transplant recipients. Results: Among 769 kidney transplants, only 1 patient received the organ from a living donor and the other transplants were  from deceased donors. 15 IFIs were diagnosed (7 histoplasmoses, 4 cryptococcoses, 3 candidemias, and 1 aspergillosis), while in 673 liver transplants, 8 IFIs were diagnosed (6 candidemias, 1 murcomycosis, and 1 cryptococcosis). Of the total 23 patients, 6 (26%) had infection diagnosed within 6 months after transplantation. The primary immunosuppressive regimen used was tacrolimus (82.6%), prednisone (82.6%), and mycophenolate (56.5%). Amphotericin B deoxycholate was the leading antifungal agent used for treatment, with nephrotoxicity in 80% of the cases. In the clinical follow-up, 14 patients progressed to cure (60.9%) and 9 to death (39.1%). A worsening of renal function was observed in most patients in the present study. Conclusion: Candidemia, histoplasmosis, and cryptococcosis were the most frequent IFIs, with the majority occurring later, 6 months after transplantation, and associated with high mortality.

Capnocytophaga canimorsus is a gram-negative rod that is part of the commensal microbiota of dogs’ and cats’ mouths. In this case, we report an 85-year-old man with COVID-19 who had his right arm bitten by a dog. His symptoms were impaired consciousness, agitation and aggressive behavior. Physical examination revealed neck stiffness and Brudzinski’s sign. The cerebrospinal fluid culture was compatible with Capnocytophaga canimorsus . He required intensive care and received a 14-day prescription of meropenem. After 40 days of hospitalization, the patient was fully recovered and was discharged. This case highlights the importance of physician and microbiologist be awareness of this disease, mainly in patients with neurological symptoms after a dog or cat bite.