Abstract:
BACKGROUND:Understanding the extent of aerosol-based transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is important for tailoring interventions for control of the coronavirus disease 2019 (COVID-19) pandemic. Multiple studies have reported the detection of SARS-CoV-2 nucleic acid in air samples, but only one study has successfully recovered viable virus, although it is limited by its small sample size. OBJECTIVE:We aimed to determine the extent of shedding of viable SARS-CoV-2 in respiratory aerosols from COVID-19 patients. METHODS:In this observational air sampling study, air samples from airborne-infection isolation rooms (AIIRs) and a community isolation facility (CIF) housing COVID-19 patients were collected using a water vapor condensation method into liquid collection media. Samples were tested for presence of SARS-CoV-2 nucleic acid using quantitative real-time polymerase chain reaction (qRT-PCR), and qRT-PCR-positive samples were tested for viability using viral culture. RESULTS:Samples from 6 (50%) of the 12 sampling cycles in hospital rooms were positive for SARS-CoV-2 RNA, including aerosols ranging from <1 µm to >4 µm in diameter. Of 9 samples from the CIF, 1 was positive via qRT-PCR. Viral RNA concentrations ranged from 179 to 2,738 ORF1ab gene copies per cubic meter of air. Virus cultures were negative after 4 blind passages. CONCLUSION:Although SARS-CoV-2 is readily captured in aerosols, virus culture remains challenging despite optimized sampling methodologies to preserve virus viability. Further studies on aerosol-based transmission and control of SARS-CoV-2 are needed.
journal_name
Infect Control Hosp Epidemioljournal_title
Infection control and hospital epidemiologyauthors
Ong SWX,Tan YK,Coleman KK,Tan BH,Leo YS,Wang DL,Ng CG,Ng OT,Wong MSY,Marimuthu Kdoi
10.1017/ice.2021.8subject
Has Abstractpub_date
2021-01-25 00:00:00pages
1-17eissn
0899-823Xissn
1559-6834pii
S0899823X21000088pub_type
杂志文章abstract:OBJECTIVES:Describe an outbreak of influenza A (H3N2); provide an analysis of vaccine efficacy; measure the sensitivity, specificity, and positive predictive value of 3 clinical case definitions of influenza. SETTING:A nursing home in Washington County, Maryland. The outbreak involved 52 residents (attack rate = 47.7%...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/646479
更新日期:1992-02-01 00:00:00
abstract:OBJECTIVE:To determine the prevalence, risk factors, and outcomes of nosocomial infection due to antimicrobial resistant bacteria in patients treated in the pediatric intensive care unit (PICU). DESIGN:Nested case-cohort study. Patient data were collected prospectively, and antimicrobial susceptibility data were abstr...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/512628
更新日期:2007-03-01 00:00:00
abstract::During the closing years of the 20th century, there has been an unprecedented number of newly recognized infectious agents and a resurgence of infectious diseases only recently thought to be conquered. These problems have been compounded by the increasing number of pathogens that have evolved resistance to antimicrobi...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章,评审
doi:10.1086/647347
更新日期:1996-08-01 00:00:00
abstract::The transmission rate of methicillin-resistant Staphylococcus aureus (MRSA) to gloves or gowns of healthcare personnel (HCP) caring for MRSA patients in a non-intensive care unit setting was 5.4%. Contamination rates were higher among HCP performing direct patient care and when patients had detectable MRSA on their bo...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1017/ice.2020.10
更新日期:2020-05-01 00:00:00
abstract::From 2000 to 2009, rates of multidrug-resistant Acinetobacter baumanii increased 10-fold to 0.2 per 1,000 patient days. From 2010 to 2015, however, rates markedly declined and have stayed below 0.05 per 1,000 patient days. Herein, we present a 15-year trend analysis and discuss interventions that may have led to the d...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1017/ice.2018.52
更新日期:2018-05-01 00:00:00
abstract:OBJECTIVE:Laboratory investigations were initiated with a povidone-iodine antiseptic solution that was intrinsically contaminated with Pseudomonas cepacia. These investigations were helpful in understanding the microbicidal and chemical properties of iodophor solutions and the mechanism by which P cepacia can survive i...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/646342
更新日期:1991-05-01 00:00:00
abstract::We conducted a non-blinded randomized trial to determine the impact of a patient hand-hygiene intervention on contamination of hospitalized patients' hands with healthcare-associated pathogens. Among patients with negative hand cultures on admission, recovery of pathogens from hands was significantly reduced in those ...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章,随机对照试验
doi:10.1017/ice.2016.323
更新日期:2017-05-01 00:00:00
abstract::Whole-genome sequencing (WGS) has yielded new insights into the transmission patterns of healthcare facility-onset Clostridioides difficile infection (HO-CDI). WGS results prompted a focused diagnostic stewardship program, which was associated with a significant and sustained decrease in HO-CDI at large, urban hospita...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1017/ice.2019.124
更新日期:2019-07-01 00:00:00
abstract:OBJECTIVE:To measure the interobserver agreement, sensitivity, specificity, positive predictive value, and negative predictive value of data submitted to a statewide surveillance system for identifying central line-associated bloodstream infection (BSI). DESIGN:Retrospective review of hospital medical records comparin...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/606168
更新日期:2009-11-01 00:00:00
abstract:OBJECTIVE:To investigate and control an outbreak of colonization and infection caused by vancomycin-resistant enterococci (VRE) in a burn intensive care unit (BICU). DESIGN:Epidemiological investigation, including multiple point-prevalence culture surveys of patients and environment, cultures from hands of healthcare ...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/501806
更新日期:2000-09-01 00:00:00
abstract::A previously published study recommended the daily use of visible smoke to test for negative air pressure in isolation rooms occupied by potentially infectious tuberculosis cases. Continuous monitoring devices were found to have poor reliability. Findings from our survey of engineering controls in acute-care hospitals...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/501943
更新日期:2001-08-01 00:00:00
abstract:OBJECTIVE:Surgical site infections (SSIs) are responsible for significant morbidity and mortality. Preadmission skin antisepsis, while controversial, has gained acceptance as a strategy for reducing the risk of SSI. In this study, we analyze the benefit of an electronic alert system for enhancing compliance to preadmis...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章,随机对照试验
doi:10.1017/ice.2015.303
更新日期:2016-03-01 00:00:00
abstract:OBJECTIVE:Data on the resources and staff compensation of hospital epidemiology and infection control (HEIC) departments are limited and do not reflect current roles and responsibilities, including the public reporting of healthcare-associated infections. This study aimed to obtain information to assist HEIC profession...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/650199
更新日期:2010-02-01 00:00:00
abstract:OBJECTIVE:To identify delayed prophylaxis from a pre-existing database and strategies to improve performance. SETTING:A skilled nursing facility with 14 floors (4 buildings). The "outbreak unit" was a 50- to 60-bed floor. METHODS:We performed surveillance during six seasons using one protocol. Prophylaxis was started...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/501978
更新日期:2002-10-01 00:00:00
abstract::We describe characteristics of elderly patients with MRSA identified in 37 Canadian hospitals between 1995 and 2002. Of these inpatients, 6,613 (66%) were older than 65 years. They were more likely than younger patients to have been colonized without infection and to have had MRSA isolated from urine or the perineum. ...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章,多中心研究
doi:10.1086/502503
更新日期:2005-10-01 00:00:00
abstract::Food is an established source of extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae. Hand hygiene and cooking prevent transmission, but hands could be recontaminated by touching used cutting boards. ESBL-producing Escherichia coli were identified on 12% of cutting boards and 50% of gloves after poultry ...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/675831
更新日期:2014-05-01 00:00:00
abstract::Clonal Mycobacterium mucogenicum isolates (determined by molecular typing) were recovered from 19 bronchoscopic specimens from 15 patients. None of these patients had evidence of mycobacterial infection. Laboratory culture materials and bronchoscopes were negative for Mycobacteria. This pseudo-outbreak was caused by c...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1017/ice.2019.317
更新日期:2020-01-01 00:00:00
abstract::Multiple cultures were positive for Bacillus cereus during routine quality assurance testing of a pharmacy robot that prepares intravenous medications. An investigation confirmed bacterial contamination of the robot as well as drug product made by the robot. The process and outcomes of the investigation are described ...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/665316
更新日期:2012-05-01 00:00:00
abstract::Social media, prevention of healthcare-associated infections (HAIs) and antimicrobial stewardship (ASP) each impact every area of medicine. Independently, each have power to change medicine, however, synergistically, the impact could be transformative. Given the profound clinical, financial, and public health impact o...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章,评审
doi:10.1017/ice.2019.231
更新日期:2019-11-01 00:00:00
abstract::OBJECTIVE To describe the investigation and control of a cluster of Serratia marcescens bacteremia in a 505-bed tertiary-care center. METHODS Cluster cases were defined as all patients with S. marcescens bacteremia between March 2 and April 7, 2014, who were found to have identical or related blood isolates determined...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1017/ice.2017.137
更新日期:2017-09-01 00:00:00
abstract:OBJECTIVE:To determine the impact of the introduction of a plastic shield-shaped device (Needleguard, Biosafe, Auckland, New Zealand) and education program designed to allow safer recapping, on recorded rates of needlestick injury. DESIGN:A before-after trial with a two-year duration of follow-up. SETTING:Tertiary re...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/646328
更新日期:1991-04-01 00:00:00
abstract::BACKGROUND High-level disinfectants (HLDs) are used throughout the healthcare industry to chemically disinfect reusable, semicritical medical and dental devices to control and prevent healthcare-associated infections among patient populations. Workers who use HLDs are at risk of exposure to these chemicals, some of wh...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1017/ice.2014.37
更新日期:2015-02-01 00:00:00
abstract::OBJECTIVE. To quantify the association between admission to an intensive care unit (ICU) room most recently occupied by a patient positive for extended-spectrum β-lactamase (EBSL)-producing gram-negative bacteria and acquisition of infection or colonization with that pathogen. DESIGN. Retrospective cohort study. SETTI...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/670216
更新日期:2013-05-01 00:00:00
abstract:OBJECTIVE:To compare the impacts of different methicillin-resistant Staphylococcus aureus (MRSA) screening test options (eg, polymerase chain reaction [PCR], rapid culture) and program characteristics on the clinical outcomes and budget of a typical US hospital. METHODS:We developed an Excel-based decision-analytic mo...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/658332
更新日期:2011-03-01 00:00:00
abstract:OBJECTIVE:To analyze the rate of occupational exposure to blood and body fluids from all sources and specifically from human immunodeficiency virus (HIV)-infected sources among hospital workers, by job category and work area. DESIGN:Multicenter prospective study. Occupational exposure data (numerator) and full-time eq...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章,多中心研究
doi:10.1086/501890
更新日期:2001-04-01 00:00:00
abstract::A case-control study was conducted on an epidemic of bacteremia and meningitis caused by Serratia marcescens in the neonatal intensive care unit and special care nursery of a general hospital in Mexico City, Mexico. A 19.9% incidence of bacteremia and meningitis was recorded in contrast to 1.4% and 3.7% during preepid...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/645909
更新日期:1989-01-01 00:00:00
abstract::Nine hundred seventy-two cultures taken from the external nares and the vaginal vestibules of 54 women for the isolation of Staphylococcus aureus were studied. The swabs were plated directly to a trypticase soy agar plate containing 5% sheep blood and were then placed into a selective staphylococcal broth. Both cultur...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/645834
更新日期:1988-05-01 00:00:00
abstract::To determine the effectiveness of infection control strategies to reduce transmission of vancomycin-resistant enterococci (VRE), a cohort study was performed in a university hospital. Contact precautions alone were not effective in reducing transmission of VRE. Strict isolation of affected patients in private rooms, i...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/513024
更新日期:2007-04-01 00:00:00
abstract:OBJECTIVES:Describe an outbreak of surgical wound infections associated with total hip arthroplasty; identify risk factors for surgical wound infection during the pre-outbreak and outbreak periods. SETTING:A 100-bed hospital. From May 1 to September 30, 1988, 7 of 15 patients who underwent total hip arthroplasty devel...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/646592
更新日期:1992-09-01 00:00:00
abstract:OBJECTIVES:To review cases of community-onset Staphylococcus aureus bacteremia and to evaluate whether the risk factors and epidemiology of methicillin-resistant S. aureus (MRSA) bacteremia have changed from early reports. DESIGN:Retrospective case-comparison study of community-onset MRSA (n = 26) and methicillin-susc...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/502227
更新日期:2003-06-01 00:00:00