ABSTRACT
Background: Environmental contamination is suspected to play a key role in transmission of Candida auris in healthcare facilities. We recently showed that environmental surfaces near C. auris-colonized patients are commonly recontaminated within hours after disinfection. Clinical factors contributing to environmental contamination are not well characterized. Methods: We conducted a multi-regional (Chicago, IL;Irvine, CA) prospective study of environmental contamination associated with C. auris colonization at six long-term care facilities (LTCF) and 1 acute-care hospital (ACH). On day of sampling, 5 participant body sites were cultured once, followed by routine daily room cleaning by facility staff, then targeted disinfection of high-touch surfaces with hydrogen peroxide wipes by research staff. Surfaces were cultured for C. auris using pre-moistened sponge-sticks and neutralizer immediately pre- and post-disinfection, and 4, 8, and 12 hours post-disinfection. We calculated the odds of surface recontamination after disinfection as a function of body site colonization with C. auris using generalized estimating equations to account for clustering among multiple surfaces within timepoints, patients, and facilities. Models included an interaction between facility type and colonization. Results: C. auris was cultured from ≥1 body site in 41 participants (12 ACH and 29 LTCF patients, 205 body sites) on day of sampling. Proportion of body sites colonized did not vary by facility type (Table). Although environmental contamination rates were similar prior to disinfection [ACH 38% (n=60 samples) vs LTCF 29%, (n=145 samples), p=0.209)], the proportion of surfaces recontaminated between 4–12 hours after disinfection was higher in ACH vs LTCF (n=574 samples) (Figure). Number of body sites colonized with C. auris was associated with higher odds of environmental recontamination [ACH: OR 2.16 (95% CI 1.63–2.88), p< 0.001;LTCF: OR 1.40 (95% CI 1.07–1.84), p=0.015;Interaction ACH vs LTCF p< 0.001].Figure.Percent of Environmental Surfaces Recontaminated with C. auris within 12 hours of Cleaning by Facility Type Conclusion: The number of body sites colonized was associated with odds of C. auris environmental contamination. Differences in environmental recontamination by facility type may be related to greater provider-patient interactions in ACH as a driving factor. Disclosures: Gabrielle M. Gussin, MS, Medline: Conducted studies in which hospitals and nursing homes received contributed antiseptic and/or environmental cleaning products;Stryker: Conducted clinical studies in which hospitals and nursing homes received contributed antiseptic products;Xttrium Laboratories: Conducted clinical studies in which hospitals and nursing homes received contributed antiseptic products Raveena D. Singh, MA, Medline: Conducted studies in which hospitals and nursing homes received contributed antiseptic and/or environmental cleaning products;Stryker: Conducted clinical studies in which hospitals and nursing homes received contributed antiseptic products;Xttrium Laboratories: Conducted clinical studies in which hospitals and nursing homes received contributed antiseptic products Raheeb Saavedra, AS, Medline: Conducted studies in which hospitals and nursing homes received contributed antiseptic and/or environmental cleaning products;Stryker: Conducted clinical studies in which hospitals and nursing homes received contributed antiseptic products;Xttrium Laboratories: Conducted clinical studies in which hospitals and nursing homes received contributed antiseptic products Nicholas M. Moore, PhD, D(ABMM), Abbott Molecular: Grant/Research Support;Cepheid: Grant/Research Support Susan S. Huang, MD, MPH, Medline: Conducted studies in which hospitals and nursing homes received contributed antiseptic and/or environmental cleaning products;Molnlyke: Conducted clinical studies in which hospitals received contributed antiseptic product;Stryker: Conducted clinical studies in which hospitals and nursing homes received contributed antiseptic products;Xttri m Laboratories: Conducted clinical studies in which hospitals and nursing homes received contributed antiseptic product Mary K. Hayden, MD, Sanofi: Member, clinical adjudication panel for an investigational SARS-CoV-2 vaccine.
ABSTRACT
Anvil is a new XSEDE advanced capacity computational resource funded by NSF. Designed with a systematic strategy to meet the ever increasing and diversifying research needs for advanced computational capacity, Anvil integrates a large capacity high-performance computing (HPC) system with a comprehensive ecosystem of software, access interfaces, programming environments, and composable services in a seamless environment to support a broad range of current and future science and engineering applications of the nation's research community. Anchored by a 1000-node CPU cluster featuring the latest AMD EPYC 3rd generation (Milan) processors, along with a set of 1TB large memory and NVIDIA A100 GPU nodes, Anvil integrates a multi-tier storage system, a Kubernetes composable subsystem, and a pathway to Azure commercial cloud to support a variety of workflows and storage needs. Anvil was successfully deployed and integrated with XSEDE during the world-wide COVID-19 pandemic. Entering production operation in February 2022, Anvil will serve the nation's science and engineering research community for five years. This paper describes the Anvil system and services, including its various components and subsystems, user facing features, and shares the Anvil team's experience through its early user access program from November 2021 through January 2022. © 2022 Owner/Author.
ABSTRACT
Background: Historically, control of HIV infection in young men living with HIV (LWH) has been problematic. We examined the STI/HIV burden in young men with urethral discharge syndrome (UDS) in Kampala, Uganda. Methods: Between Oct 2019-Nov 2020, 250 men with UDS were enrolled at 6 urban sites. All HIV positive men (20%, 50/250) had plasma viral load testing (Abbott m2000 RealTime HIV-1);when VL>1000 copies/mL, resistance and recency testing (Asanté HIV-1 Rapid Recency Assay, Sedia Biosciences) were performed. Penile meatal swabs were retrospectively tested for gonorrhea, chlamydia, trichomoniasis, and Mycoplasma genitalium (Hologic Aptima CT/NG, TV, MG). Descriptive statistical analysis, logistic, and bivariable and multivariable regression were undertaken. Results: Among the men LWH, 92% (46/50) had VL<1000;4 were not suppressed, 1 of whom was previously undiagnosed. Among the viremic individuals, no major resistance mutations were found and none appeared recently infected. Men (median age 24[22;32]) reported sex partners/previous 2 months (median 2[1;2]), 61.6% engaged in transactional sex in the previous 6 months, and 48.4% reported alcohol use. 44.4% reported alcohol use before sex in the previous 6 months. Overall, 0.4% reported 'always' condom use, 21.8% continued condomless sex since onset of UDS symptoms. There was a high burden of active, undiagnosed STIs found in these men (see Table);of the 10% who had syphilis, 80% were previously undiagnosed. Agreement between HIV-and syphilis-POC and lab-based testing was 100% and 95% (19/20), respectively. By multivariable logistic regression, alcohol use (OR, 3.32 (95% CI:1.61, 7.11)), and condomless sexual activity since symptom onset (OR, 2.86 (95% CI:1.20, 6.84)) were significantly associated with HIV;92% had at least one other STI. Conclusion: Among men presenting with UDS, bacterial STIs were very common. 20% had HIV with a surprisingly high level of viral suppression and no evidence of resistance in those with detectable VL. Recency testing results were non-discriminatory;none appeared recently infected. Risk of future HIV acquisition is high in those not LWH. Given the high frequency of bacterial STI, alcohol use and unprotected high-risk sexual behavior in this population, men with UDS who test negative for HIV should be prioritized for PrEP. Future research, evaluating the effect of SARS-CoV-2 on the burden of STI and level of viral suppression in this population, is required.