Abstract:
OBJECTIVE:To describe the pattern of transmission of SARS-CoV-2 during 2 nosocomial outbreaks of COVID-19 with regard to the possibility of airborne transmission. DESIGN:Contact investigations with active case finding were used to assess the pattern of spread from 2 COVID-19 index patients. SETTING:A community hospital and university medical center in the United States, in February and March, 2020, early in the COVID-19 pandemic. PATIENTS:Two index patients and 421 exposed health care workers. METHODS:Exposed staff were identified by analyzing the EMR and conducting active case finding in combination with structured interviews. Staff were tested for COVID-19 by obtaining oropharyngeal/nasopharyngeal specimens, with RT-PCR testing to detect SARS-CoV-2. RESULTS:Two separate index patients were admitted in February and March 2020, without initial suspicion for COVID-19 and without contact or droplet precautions in place; both patients underwent several aerosol generating procedures in this context. A total of 421 health care workers were exposed in total, and the results of the case contact investigations identified 8 secondary infections in health care workers. In all 8 cases, the staff had close contact with the index patients without sufficient personal protective equipment. Importantly, despite multiple aerosol generating procedures, there was no evidence of airborne transmission. CONCLUSION:These observations suggest that, at least in a healthcare setting, a majority of SARS-CoV-2 transmission is likely to take place during close contact with infected patients through respiratory droplets, rather than by long-distance airborne transmission.
journal_name
Infect Control Hosp Epidemioljournal_title
Infection control and hospital epidemiologyauthors
Bays DJ,Nguyen MH,Cohen SH,Waldman S,Martin CS,Thompson GR,Sandrock C,Tourtellotte J,Pugashetti JV,Phan C,Nguyen HH,Warner GY,Penn BHdoi
10.1017/ice.2020.321subject
Has Abstractpub_date
2020-07-03 00:00:00pages
1-22eissn
0899-823Xissn
1559-6834pii
S0899823X20003219pub_type
杂志文章abstract:OBJECTIVE:To study the spread of strains of Enterobacter aerogenes in our hospital in 1992 and 1993 by using two genotypic markers, and to evaluate these methods for the epidemiological investigation of this species. DESIGN:Ribotyping (using two endonucleases) and arbitrarily primed (AP)-PCR (using two different 10-me...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/647094
更新日期:1995-04-01 00:00:00
abstract:OBJECTIVE:To describe an outbreak of imipenem-resistant Acinetobacter baumannii (IR-Ab) and the measures for its control, and to investigate risk factors for IR-Ab acquisition. DESIGN:An observational and a case-control study. SETTING:A surgical intensive care unit (ICU) in a university tertiary care hospital. METHO...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/501822
更新日期:2001-01-01 00:00:00
abstract::We studied the association between chlorhexidine gluconate (CHG) concentration on skin and resistant bacterial bioburden. CHG was almost always detected on the skin, and detection of methicillin-resistant Staphylococcus aureus, carbapenem-resistant Enterobacteriaceae, and vancomycin-resistant Enterococcus on skin site...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1017/ice.2019.265
更新日期:2019-12-01 00:00:00
abstract::To understand the feasibility of implementing a standardized performance measure for collecting and reporting influenza vaccination rates among healthcare personnel, qualitative, semistructured interviews were conducted with key informants in 32 healthcare facilities. Despite practical and logistical challenges to imp...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/667375
更新日期:2012-09-01 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::OBJECTIVE Recerntly, the role of the healthcare network, defined as a set of hospitals linked by patient transfers, has been increasingly considered in the control of antimicrobial resistance. Here, we investigate the potential impact of nursing homes on the spread of antimicrobial-resistant pathogens across the healt...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1017/ice.2016.59
更新日期:2016-07-01 00:00:00
abstract::We report nosocomial infection with Vibrio cholerae 01, in four seriously ill individuals and one infant in Guatemala. Nosocomial cholera occurs in developing countries in Latin America and should be suspected in hospitalized patients with diarrhea, especially during community outbreaks, in order to institute appropri...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/647321
更新日期:1996-06-01 00:00:00
abstract::We investigated 4 hepatitis C virus (HCV) infection outbreaks at hemodialysis units to identify practices associated with transmission. Apparent failures to follow recommended infection control precautions resulted in patient-to-patient HCV transmission, through cross-contamination of the environment or intravenous me...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/605472
更新日期:2009-09-01 00:00:00
abstract::We assessed hand hygiene adherence in 2 infectious disease units. In one unit, adherence declined slightly from year 1 (84.2%) to year 4 (71.0%) after a multimodal intervention but remained much higher than before intervention. Adherence dropped in the second unit after a loss of leadership (from 50.7% to 5.7%). Stron...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/675296
更新日期:2014-03-01 00:00:00
abstract::Definitions of ventilator-associated pneumonia do not note a preferred daily time for obtaining denominator data. We examined collecting data on the number of ventilator-days at different times of day in 7 intensive care units. Rates of ventilator-associated pneumonia did not significantly differ when denominator data...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/652450
更新日期:2010-05-01 00:00:00
abstract:BACKGROUND AND OBJECTIVES:Peripheral venous catheters (PVCs) can be associated with serious infectious complications. We evaluated the effect of education and feedback on process measures to improve PVC care and infectious complications. DESIGN:Quasi-experimental controlled crossover study with sampling before and aft...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章,随机对照试验
doi:10.1086/665322
更新日期:2012-05-01 00:00:00
abstract:OBJECTIVE:To compare the occurrence of Clostridium difficile among inpatients infected with human immunodeficiency virus (HIV) in two different hospitals. DESIGN:Prospective, observational study. SETTING:Specialized HIV inpatient units. PATIENTS:HIV-infected inpatients at Cook County Hospital (CCH) and Rush Presbyte...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/501987
更新日期:2002-11-01 00:00:00
abstract:OBJECTIVE:To evaluate the effectiveness of a positive deviance strategy for the improvement of hand hygiene compliance in 2 adult step-down units. DESIGN:A 9-month, controlled trial comparing the effect of positive deviance on compliance with hand hygiene. SETTING:Two 20-bed step-down units at a tertiary care private...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/649224
更新日期:2010-01-01 00:00:00
abstract::If you have calculated a confidence interval for an infection rate and found the interval extending into meaningless negative numbers, chances are the error is due to use of approximation formulae. Many of us unknowingly were taught to use the Wald approximation, which does not always approximate the exact binomial di...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/501701
更新日期:2000-01-01 00:00:00
abstract:OBJECTIVE:Antibiotic time-outs (ATOs) have been advocated to improve antibiotic use without dedicated stewardship resources, but their utility is poorly defined. We sought to evaluate the effectiveness of an ATO led by a team-based pharmacist. DESIGN:Cluster randomized controlled trial. SETTING:Six medicine teams at ...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1017/ice.2020.347
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:To determine the impact of the screening test, nursing workload, handwashing rates, and dependence of handwashing on risk level of patient visit on methicillin-resistant Staphylococcus aureus (MRSA) transmission among hospitalized patients. SETTING:General medical ward. METHODS:Monte Carlo simulation was us...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/502589
更新日期:2005-07-01 00:00:00
abstract:OBJECTIVE:To compare the number of surgical site infections (SSIs) registered after hospital discharge with respect to various surgical procedures and to identify the procedures for which postdischarge surveillance (PDS) is most important. DESIGN:Prospective SSI surveillance with voluntary PDS. Recommended methods for...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/506403
更新日期:2006-08-01 00:00:00
abstract:OBJECTIVE:The incidence of extended-spectrum beta-lactamase (ESbetaL)-mediated resistance has increased markedly during the past decade. Risk factors for colonization with ESbetaL-producing Escherichia coli and Klebsiella species (ESbetaL-EK) remain unclear, as do methods to control their further emergence. DESIGN:Cas...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/502045
更新日期:2002-05-01 00:00:00
abstract::Following large declines in tuberculosis transmission the United States, large-scale screening programs targeting low-risk healthcare workers are increasingly a source of false-positive results. We report a large cluster of presumed false-positive tuberculin skin test results in healthcare workers following a change t...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1017/ice.2018.59
更新日期:2018-06-01 00:00:00
abstract:OBJECTIVE:To describe the prevalence, characteristics, and appropriateness of systemic antibiotic use in assisted living (AL) and to conduct a preliminary quality improvement intervention trial to reduce inappropriate prescribing. DESIGN:Pre-post study, with a 13-month intervention period. SETTING:Four AL communities...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章,多中心研究
doi:10.1086/677821
更新日期:2014-10-01 00:00:00
abstract::SHEA and the American Society for Quality's Health Care Division have been collaborating in areas of common concern to improve healthcare quality. We each possess a heritage of different but complementary approaches and stand a better chance of success together than apart. This presentation describes rapid growth of o...
journal_title:Infection control and hospital epidemiology
pub_type:
doi:10.1086/501957
更新日期:2001-09-01 00:00:00
abstract::We employed a questionnaire to survey 334 registered nurses regarding their knowledge, perceptions and vaccine acceptance for Hepatitis B virus (HBV) infections. The study population was those persons working in areas considered at high-risk for contracting HBV. The nurses were asked to provide information regarding b...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/646135
更新日期:1990-03-01 00:00:00
abstract:OBJECTIVE:To determine whether the molecular epidemiological characteristics of methicillin-resistant Staphylococcus aureus (MRSA) had changed in a level III neonatal intensive care unit (NICU). DESIGN:Retrospective review of medical records. SETTING:Level III NICU of a university-affiliated children's hospital in Ne...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/652526
更新日期:2010-06-01 00:00:00
abstract::We investigated alternative measurement methodology for infrared body thermometry to increase accuracy for outdoor fever screening during the 2003 SARS epidemic. Our results indicate that the auditory meatus temperature is a superior alternative compared with the forehead body surface temperature due to its close appr...
journal_title:Infection control and hospital epidemiology
pub_type: 临床试验,杂志文章
doi:10.1086/502351
更新日期:2004-12-01 00:00:00
abstract:BACKGROUND:Clostridium difficile infection (CDI) is a reportable hospital metric associated with significant healthcare expenditures. The epidemiology of CDI is pivotal to the implementation of preventative measures. OBJECTIVE:To portray temporal CDI trends in Veterans Health Administration (VA) hospitals. DESIGN:A r...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1017/ice.2019.281
更新日期:2020-01-01 00:00:00
abstract::The mite Dermanyssus gallinae may cause pruritic dermatitis in humans. We describe a case of nosocomial infestation with D. gallinae from an abandoned pigeon nest suspended on the front wall of the Hôpital Henri Mondor near a window. Close surveillance and regular destruction of pigeon nests could prevent these incide...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/528815
更新日期:2008-03-01 00:00:00
abstract:OBJECTIVE:To study the epidemiology of Yersinia enterocolitica infections in hospitalized patients and to determine the frequency of hospital-acquired infection and the modes of transmission within the hospital. DESIGN:Descriptive study in which the clinical microbiology laboratory reported all positive Yersinia cultu...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/646496
更新日期:1992-03-01 00:00:00
abstract::Evidence that genes were transferred during evolution from plants to bacteria was obtained from nucleotide and protein sequence analyses. However, the extent of such transfers among phylogenetically distant organisms is limited by various factors, including those related to complexity of the environment and those endo...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章,评审
doi:10.1086/501779
更新日期:2000-06-01 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:BACKGROUND:From 1990 to 1995 at Hospital Universitário Clementino Fraga Filho, patients colonized or infected with methicillin-resistant Staphylococcus aureus (MRSA) were treated with mupirocin to eliminate MRSA carriage. In 1995, 65% of MRSA patients at this hospital had mupirocin-resistant isolates. Starting in 1996,...
journal_title:Infection control and hospital epidemiology
pub_type: 杂志文章
doi:10.1086/502599
更新日期:2005-07-01 00:00:00