Prior studies of universal masking have not measured face-mask compliance. We performed a quality improvement study to monitor and improve face-mask compliance among healthcare personnel (HCP) during the coronavirus disease 2019 (COVID-19) pandemic.

Mixed-methods study.

Tertiary-care center in West Haven, Connecticut.

HCP including physicians, nurses, and ancillary staff.

Face-mask compliance was measured through direct observations during a 4-week baseline period after universal masking was mandated. Frontline and management HCP completed semistructured interviews from which a multimodal intervention was developed. Direct observations were repeated during a 14-week period following implementation of the multimodal intervention. Differences between units were evaluated with χ2 testing using the Bonferroni correction. Face-mask compliance between baseline and intervention periods was compared using time-series regression.

Among 1,561 observations during the baseline period, median weekly face-mask compliance was 82.2% (range, 80.8%–84.4%). Semistructured interviews were performed with 16 HCP. Qualitative analysis informed the development of a multimodal intervention consisting of audit and passive feedback, active discussion, and increased communication from leadership. Among 2,651 observations during the intervention period, median weekly face-mask compliance was 92.6% (range, 84.6%–97.9%). There was no difference in weekly face-mask compliance between COVID-19 and non–COVID-19 units. The multimodal intervention was associated with an increase in face-mask compliance (β = 0.023; P = .002).

Face-mask compliance remained suboptimal among HCP despite a facility-wide mandate for universal masking. A multimodal intervention consisting of audit and passive feedback, active discussion, and increased communication from leadership was effective in increasing face-mask compliance among HCP.

A survey was distributed to determine physicians' confidence levels in recognizing potential Category-A bioterrorism disease threats (e.g., smallpox, anthrax), preferred means of obtaining continuing medical education (CME) credits, and their knowledge of the Connecticut Department of Public Health's (DPH) disease reporting requirements.

Surveys were mailed to all physicians in the three-hospital Yale New Haven Health (YNHH) System (2,174) from January to March 2004; there were 820 respondents for a 37.7% response rate.

A total of 71% of physicians indicated that they were “not confident” that they could recognize five of the infectious agents named;they had higher confidence rates for smallpox (48.8%). Infectious diseases and emergency medicine physicians had the highest rates of confidence. Seventy-eight percent of physicians indicated conferences and lectures as their preferred CME learning modality. Nearly 72% of physicians reported a low familiarity with the DPH reporting requirements.

The results highlighted the breadth of perceived weaknesses among clinicians from disease recognition to reporting incidents, which signifies the need for greater training in these areas. As clinicians themselves emphasized their lack of skills and knowledge in this area, there should be a rapid development and dissemination of problem-based learning CME courses in bioterrorism preparedness.

To compare and contrast the epidemiology of polymicrobial and monomicrobial bloodstream infections (BSIs) in newborn intensive care unit (NICU) patients.

Retrospective, matched case-control study.

The Yale-New Haven Hospital NICU from 1989 through 2006.

NICU patients with BSIs.

Each neonate with polymicrobial BSI (case patient) was matched to one neonate with monomicrobial BSI (control patient), by birth date, weight, and sex; and univariate and multivariate analyses were performed.

One hundred five cases of polymicrobial BSI were identified in 102 infants, representing 10% of all neonatal BSIs in our institution. Coagulase-negative staphylococci were the most common organisms recovered from culture. Infants with polymicrobial BSI had later onset of infection than infants with monomicrobial BSI (mean day of life, 37.5 vs 24.0; P< .001). Polymicrobial BSI occurred more frequently among infants with a severe underlying condition than in those without such a condition (odds ratio [OR], 1.8; 95% confidence interval [CI], 1.1-3.2) and among infants requiring an indwelling central venous catheter for a prolonged duration (mean, 16.9 days, compared with 9.8 days for infants with monomicrobial BSI; P = .001). Multivariate analysis revealed that later onset of infection (adjusted OR [aOR], 1.02; 95% CI, 1.00-1.04) and presence of a severe underlying condition (aOR, 1.91; 95% CI, 1.12-3.38) were independent risk factors for polymicrobial BSI. No differences in outcome or mortality were observed.

Changes in the microbiology and epidemiology of NICU-related polymicrobial BSI have occurred since the last North American review. In the present study, although differences were observed, most risk factors and outcomes were similar between monomicrobial BSI and polymicrobial BSI. Epidemiologic surveillance is critical to identify trends associated with neonatal polymicrobial BSI, particularly those that may impact preventative strategies, diagnostic measures, and therapeutic interventions.

To determine the frequency of conjunctival colonization, identify the colonizing flora, and correlate culture results with physical findings in infants in a NICU

Surveillance study.

Level III NICU of a large university teaching hospital.

All infants admitted for longer than 24 hours during a 26-week period.

Weekly bacterial conjunctival cultures were performed for all infants. The conjunctival appearance at the time of culture was recorded. The frequency, identity, and correlation of culture results with physical findings were determined.

One thousand ninety-one cultures were performed for 319 infants: 133 (42%) had no positive cultures and 186 (58%) had at least one positive culture. Culture analysis revealed that 411 (38%) were positive and yielded 494 isolates comprising more than 18 bacterial species. Bacteria most commonly isolated included coagulase-negative Staphylococcus (CoNS) (75%), viridans group streptococci (8.7%), Staphylococcus aureus (3.8%), Enterococcus species (2.6%), and Serratia marcescens (2.4%). The frequency of non-CoNS isolates increased significantly during the first 6 weeks of patient hospital stay (6% [1 to 3 weeks] to 12% [4 to 6 weeks]; P = .01), with an increasing trend to 15 weeks (18%). Correlation of bacteriologic results with physical findings demonstrated that infants with non-CoNS isolates exhibited conjunctival edema, erythema, or exudates more frequently than did infants with CoNS alone (30% vs 13%; P = .0001).

Conjunctival colonization was common among infants in a NICU. Prolonged hospitalization predisposes to colonization with potentially pathogenic organisms. Physical findings were more likely in patients with non-CoNS conjunctival isolates.

To describe the hospital precautions used to isolate a Sabiá virus (arenavirus: Arenaviridae)-infected patient in a US hospital and to protect hospital staff and visitors.

Investigation of a single case of arenavirus laboratory-acquired infection and associated case-contacts.

A 900-bed, tertiary-care, university-affiliated medical center.

The case-patient became ill with Sabiá virus infection. The case-contacts consisted of healthcare workers, coworkers, friends, and relatives of the case-patient.

Enhanced isolation precautions for treatment of a viral hemorrhagic fever (VHF) patient were implemented in the clinical laboratory and patient-care setting to prevent nosocomial transmission. The enhanced precautions included preventing aerosol spread of the virus from the patient or his clinical specimens. All case-contacts were tested for Sabiá virus antibodies and monitored for signs and symptoms of early disease.

No cases of secondary infection occurred among 142 case-contacts.

With the frequency of worldwide travel, patients with VHF can be admitted to a local hospital at any time in the United States. The use of enhanced isolation precautions for VHF appeared to be effective in preventing secondary cases by limiting the number of contacts and promoting proper handling of laboratory specimens. Patients with VHF can be managed safely in a local hospital setting, provided that appropriate precautions are planned and implemented.