Publications by authors named "L A Witt"

Background: In Europe, ofatumumab is approved for breastfeeding, but data on its transfer into breast milk and clinical experience are lacking.

Objective: To analyze (1) health, development, and adverse events after live vaccination of ofatumumab-exposed breastfed infants and (2) detectability of ofatumumab in breast milk, and to calculate the relative infant dose (RID) using two methods, the traditional method and a second method considering maternal exposure to multiple ofatumumab doses and extended collection period.

Methods: In this observational study, clinical data were collected by standardized telephone interviews up to 2 years postpartum.

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Background: Ceftolozane-tazobactam and ceftazidime-avibactam are preferred treatment options for multidrug-resistant Pseudomonas aeruginosa infections; however, real-world comparative effectiveness studies are scarce. Pharmacokinetic and pharmacodynamic differences between the agents might affect clinical response rates. We aimed to compare the effectiveness of ceftolozane-tazobactam and ceftazidime-avibactam for treatment of invasive multidrug-resistant P aeruginosa infections.

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Article Synopsis
  • - The study investigates the impact of social vulnerability on clinical outcomes for hospitalized influenza patients, analyzing data from over 57,000 cases between the 2014-2015 and 2018-2019 influenza seasons across 13 states.
  • - It aims to understand how social vulnerability correlates with severe outcomes like ICU admission, use of advanced respiratory support, and 30-day mortality, while also examining patterns of vaccine and antiviral use based on social vulnerability levels.
  • - Findings reveal that patients from areas with high social vulnerability experience worse outcomes, such as higher rates of needing invasive ventilation support compared to those from less vulnerable areas.
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Background: Information on symptomatic therapy (ST) use in women of childbearing age with multiple sclerosis is sparse, and data on the impact of ST pregnancy exposure on pregnancy outcome are lacking.

Objective: To investigate (1) ST use patterns pre-conception, during pregnancy and postpartum and (2) pregnancy outcomes.

Methods: Pregnancy data from the German Multiple Sclerosis and Pregnancy Registry were analyzed for the ST use from pre-conception to postpartum.

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Problem/condition: Seasonal influenza accounts for 9.3 million-41 million illnesses, 100,000-710,000 hospitalizations, and 4,900-51,000 deaths annually in the United States. Since 2003, the Influenza Hospitalization Surveillance Network (FluSurv-NET) has been conducting population-based surveillance for laboratory-confirmed influenza-associated hospitalizations in the United States, including weekly rate estimations and descriptions of clinical characteristics and outcomes for hospitalized patients.

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