Incidence, Etiology, Risk Factors, and Outcomes of Bloodstream Infection after a Second Hematopoietic Stem Cell Transplantation.

Objective Infections after a second hematopoietic stem cell transplantation (HSCT) occur commonly and are associated with high mortality. However, studies on bloodstream infection (BSI) after a second HSCT are lacking. We therefore evaluated the details of BSI after a second HSCT.

Risk factors for disease progression in Japanese patients with COVID-19 with no or mild symptoms on admission.

Background: Although the risk factors for coronavirus disease 2019 (COVID-19) mortality have been identified, there is limited information about the risk factors for disease progression after hospitalization among Japanese patients with COVID-19 exhibiting no or mild symptoms.

Methods: All 302 consecutive patients who were admitted to our institutions and diagnosed with COVID-19 between March and December 2020 were retrospectively assessed. Ultimately, 210 adult patients exhibiting no or mild symptoms on admission were included in the analysis.

Listeria monocytogenes Bacteremia During Isatuximab Therapy in a Patient with Multiple Myeloma.

An elderly patient with multiple myeloma (MM) was being treated with several regimens and developed a severe drug eruption, necessitating the use of atovaquone instead of trimethoprim-sulfamethoxazole for pneumocystis pneumonia (PCP) prophylaxis. For progressive MM, treatment with isatuximab, an anti-CD38 monoclonal antibody, was started. During the treatment, he developed Listeria monocytogenes bacteremia and recovered quickly with ampicillin administration.