Background: The objective was to evaluate patterns of pediatric coronavirus disease 2019 testing in a large health system throughout the pandemic, before and after school reopening. Methods: This was a cross-sectional time-series study of clinical virology results from children tested for severe acute respiratory syndrome coronavirus 2 in Southern Connecticut and areas of New York and Rhode Island. Data collected include demographics, hospital admission, changes in percent positive tests over time, detection intervals in persistently positive children and cycle threshold values. The setting was the Yale New Haven Health System has 6 hospitals at 4 Connecticut locations, 1 hospital in Rhode Island and ambulatory locations in Connecticut, Rhode Island and New York. Participants included twenty-three–thousand one-hundred thirty-seven children ≤ 18 years of age, tested for coronavirus disease 2019 at an ambulatory testing site, the emergency department or on an inpatient unit within the Yale New Haven Health System. Results: Among all tests, 3.2% were positive. Older children consistently made up the larger portion of positive pediatric cases, regardless of community prevalence. Increased pediatric cases later in the pandemic when prevalence in adults was relatively low correlates with a higher number of tests performed in children and not with an increased positivity rate. No significant changes in trends of positivity were detected after the reopening of schools. Symptomatic and asymptomatic children had similar cycle threshold values regardless of age, and a subset of children demonstrated persistent viral detection, some for as long as 6 weeks. Conclusion: An increase in pediatric cases documented in the late summer was predominately due to increased access to testing for children. The percent positivity in children did not change in the first 3 weeks after school opened. A subset of children has detectable severe acute respiratory syndrome coronavirus 2 RNA in the upper respiratory tract for weeks after the initial infection.
Objective: Healthcare-associated bloodstream infections (HABSIs) are a significant cause of mortality and morbidity in the neonatal intensive care unit (NICU) population. Our objectives were to review the epidemiology of HABSIs in our NICU and to examine the applicability of National Healthcare Safety Network (NHSN) definitions to the NICU population. Methods: We performed a retrospective review of all neonates admitted to the 54-bed, level IV NICU at Yale-New Haven Children’s Hospital with a HABSI between January 1, 2013, and December 31, 2018. Clinical definitions per NICU team and NHSN site-specific definitions used for source identification were compared using the McNemar χ2 test. Results: We identified 86 HABSIs with an incidence rate of 0.80 per 1,000 patient days. Only 13% of these were CLABSIs. Both CLABSIs and non–catheter-related bloodstream infections occurred primarily in preterm neonates, but the latter were associated with a significantly higher incidence of comorbidities and the need for respiratory support. The NHSN definitions were less likely to identify a source compared to the clinical definitions agreed upon by our NICU treating team (P < .001). Furthermore, 50% of patients without an identified source of infection by NHSN definitions were bacteremic with a mucosal barrier injury organism, likely from gut translocation. Conclusions: HABSIs occur primarily in premature infants with comorbidities, and CLABSIs account for a small proportion of these infections. With the increasing focus on HABSI prevention, there is a need for better NHSN site-specific definitions for the NICU population to prevent misclassification and direct prevention efforts.
BACKGROUND AND OBJECTIVES: Methicillin-resistant Staphylococcus aureus (MRSA) is prevalent in most NICUs, with a high rate of skin colonization and subsequent invasive infections among hospitalized neonates. The effectiveness of interventions designed to reduce MRSA infection in the NICU during the coronavirus disease 2019 (COVID-19) pandemic has not been characterized. METHODS: Using the Institute for Healthcare Improvement’s Model for Improvement, we implemented several process-based infection prevention strategies to reduce invasive MRSA infections at our level IV NICU over 24 months. The outcome measure of invasive MRSA infections was tracked monthly utilizing control charts. Process measures focused on environmental disinfection and hospital personnel hygiene were also tracked monthly. The COVID-19 pandemic was an unexpected variable during the implementation of our project. The pandemic led to restricted visitation and heightened staff awareness of the importance of hand hygiene and proper use of personal protective equipment, as well as supply chain shortages, which may have influenced our outcome measure. RESULTS: Invasive MRSA infections were reduced from 0.131 to 0 per 1000 patient days during the initiative. This positive shift was sustained for 30 months, along with a delayed decrease in MRSA colonization rates. Several policy and practice changes regarding personnel hygiene and environmental cleaning likely contributed to this reduction. CONCLUSIONS: Implementation of a multidisciplinary quality improvement initiative aimed at infection prevention strategies led to a significant decrease in invasive MRSA infections in the setting of the COVID-19 pandemic.
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