Search

Transplant recipients who are seronegative for Toxoplasma and receive an organ from a seropositive donor are at high risk for donor‐derived toxoplasmosis in the absence of prophylaxis. While the risk in cardiac transplant recipients is well known, this infection is often underrecognized in noncardiac transplant recipients. Toxoplasmosis in transplant patients is associated with high mortality, and diagnosis is challenging as the presentation is nonspecific. Recommendations for prophylaxis in cardiac transplant recipients are well‐defined, but the optimal prophylactic strategy in noncardiac transplant recipients, especially those with sulfa allergies, is unknown. We report a case of donor‐derived disseminated toxoplasmosis in a liver transplant recipient who did not receive prophylaxis due to documented sulfa allergy. The patient subsequently underwent a challenge with trimethoprim/sulfamethoxazole and was successfully treated with this therapy. This case underscores the variable clinical presentation of donor‐derived toxoplasmosis as well as the critical importance of accurate allergy evaluation pretransplant. [ABSTRACT FROM AUTHOR]

BackgroundInfluenza acts synergistically with bacterial co-pathogens. Few studies have described co-infection in a large cohort with severe influenza infection.ObjectivesTo describe the spectrum and clinical impact of co-infections.Study designRetrospective cohort study of patients with severe influenza infection from September 2013 through April 2014 in intensive care units at 33 U.S. hospitals comparing characteristics of cases with and without co-infection in bivariable and multivariable analysis.ResultsOf 507 adult and pediatric patients, 114 (22.5%) developed bacterial co-infection and 23 (4.5%) developed viral co-infection. Staphylococcus aureus was the most common cause of co-infection, isolated in 47 (9.3%) patients. Characteristics independently associated with the development of bacterial co-infection of adult patients in a logistic regression model included the absence of cardiovascular disease (OR 0.41 [0.23-0.73], p=0.003), leukocytosis (>11K/μl, OR 3.7 [2.2-6.2], p

BackgroundInfluenza A (H1N1) pdm09 became the predominant circulating strain in the United States during the 2013-2014 influenza season. Little is known about the epidemiology of severe influenza during this season.MethodsA retrospective cohort study of severely ill patients with influenza infection in intensive care units in 33 US hospitals from September 1, 2013, through April 1, 2014, was conducted to determine risk factors for mortality present on intensive care unit admission and to describe patient characteristics, spectrum of disease, management, and outcomes.ResultsA total of 444 adults and 63 children were admitted to an intensive care unit in a study hospital; 93 adults (20.9%) and 4 children (6.3%) died. By logistic regression analysis, the following factors were significantly associated with mortality among adult patients: older age (>65 years, odds ratio, 3.1 [95% CI, 1.4-6.9], P=.006 and 50-64 years, 2.5 [1.3-4.9], P=.007; reference age 18-49 years), male sex (1.9 [1.1-3.3], P=.031), history of malignant tumor with chemotherapy administered within the prior 6 months (12.1 [3.9-37.0], P