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1.
Clin Infect Dis ; 73(11): e4515-e4520, 2021 12 06.
Article in English | MEDLINE | ID: mdl-32866224

ABSTRACT

BACKGROUND: Following a meropenem shortage, we implemented a postprescription review with feedback (PPRF) in November 2015 with mandatory infectious disease (ID) consultation for all meropenem and imipenem courses > 72 hours. Providers were made aware of the policy via an electronic alert at the time of ordering. METHODS: A retrospective study was conducted at the University of Washington Medical Center (UWMC) and Harborview Medical Center (HMC) to evaluate the impact of the policy on antimicrobial consumption and clinical outcomes pre- and postintervention during a 6-year period. Antimicrobial use was tracked using days of therapy (DOT) per 1000 patient-days, and data were analyzed by an interrupted time series. RESULTS: There were 4066 and 2552 patients in the pre- and postintervention periods, respectively. Meropenem and imipenem use remained steady until the intervention, when a marked reduction in DOT/1000 patient-days occurred at both hospitals (UWMC: percentage change -72.1% (95% confidence interval [CI] -76.6, -66.9), P < .001; HMC: percentage change -43.6% (95% CI -59.9, -20.7), P = .001). Notably, although the intervention did not address antibiotic use until 72 hours after initiation, there was a significant decline in meropenem and imipenem initiation ("first starts") in the postintervention period, with a 64.9% reduction (95% CI 58.7, 70.2; P < .001) at UWMC and 44.7% reduction (95% CI 28.1, 57.4; P < .001) at HMC. CONCLUSIONS: PPRF and mandatory ID consultation for meropenem and imipenem use beyond 72 hours resulted in a significant and sustained reduction in the use of these antibiotics and notably impacted their up-front usage.


Subject(s)
Carbapenems , Communicable Diseases , Anti-Bacterial Agents/therapeutic use , Communicable Diseases/drug therapy , Humans , Meropenem/therapeutic use , Referral and Consultation , Retrospective Studies
2.
Clin Infect Dis ; 73(11): e4592-e4598, 2021 12 06.
Article in English | MEDLINE | ID: mdl-33151283

ABSTRACT

BACKGROUND: ß-Hemolytic streptococci are frequently implicated in necrotizing soft-tissue infections (NSTIs). Clindamycin administration may improve outcomes in patients with serious streptococcal infections. However, clindamycin resistance is growing worldwide, and resistance patterns in NSTIs and their impact on outcomes are unknown. METHODS: Between 2015 and 2018, patients with NSTI at a quaternary referral center were followed up for the outcomes of death, limb loss, and streptococcal toxic shock syndrome. Surgical wound cultures and resistance data were obtained within 48 hours of admission as part of routine care. Risk ratios for the association between these outcomes and the presence of ß-hemolytic streptococci or clindamycin-resistant ß-hemolytic streptococci were calculated using log-binomial regression, controlling for age, transfer status, and injection drug use-related etiology. RESULTS: Of 445 NSTIs identified, 85% had surgical wound cultures within 48 hours of admission. ß-Hemolytic streptococci grew in 31%, and clindamycin resistance was observed in 31% of cultures. The presence of ß-hemolytic streptococci was associated with greater risk of amputation (risk ratio, 1.80; 95% confidence interval, 1.07-3.01), as was the presence of clindamycin resistance among ß-hemolytic streptococci infections (1.86; 1.10-3.16). CONCLUSIONS: ß-Hemolytic streptococci are highly prevalent in NSTIs, and in our population clindamycin resistance was more common than previously described. Greater risk of limb loss among patients with ß-hemolytic streptococci-particularly clindamycin-resistant strains-may portend a more locally aggressive disease process or may represent preexisting patient characteristics that predispose to both infection and limb loss. Regardless, these findings may inform antibiotic selection and surgical management to maximize the potential for limb salvage.


Subject(s)
Soft Tissue Infections , Streptococcal Infections , Anti-Bacterial Agents/pharmacology , Anti-Bacterial Agents/therapeutic use , Clindamycin/pharmacology , Clindamycin/therapeutic use , Humans , Soft Tissue Infections/drug therapy , Soft Tissue Infections/epidemiology , Streptococcal Infections/complications , Streptococcal Infections/drug therapy , Streptococcal Infections/epidemiology , Streptococcus
3.
Clin Infect Dis ; 2021 Nov 15.
Article in English | MEDLINE | ID: mdl-34791102

ABSTRACT

BACKGROUND: Since its emergence in late 2019, SARS-CoV-2 continues to pose a risk to healthcare personnel (HCP) and patients in healthcare settings. Although all clinical interactions likely carry some risk of transmission, human actions like coughing and care activities like aerosol-generating procedures likely have a higher risk of transmission. The rapid emergence and global spread of SARS-CoV-2 continues to create significant challenges in healthcare facilities, particularly with shortages of personal protective equipment (PPE) used by HCP. Evidence-based recommendations for what PPE to use in conventional, contingency, and crisis standards of care continue to be needed. Where evidence is lacking, the development of specific research questions can help direct funders and investigators. OBJECTIVE: Develop evidence-based rapid guidelines intended to support HCP in their decisions about infection prevention when caring for patients with suspected or known COVID-19. METHODS: IDSA formed a multidisciplinary guideline panel including frontline clinicians, infectious disease specialists, experts in infection control, and guideline methodologists with representation from the disciplines of public health, medical microbiology, pediatrics, critical care medicine and gastroenterology. The process followed a rapid recommendation checklist. The panel prioritized questions and outcomes. Then a systematic review of the peer-reviewed and grey literature was conducted. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach was used to assess the certainty of evidence and make recommendations. RESULTS: The IDSA guideline panel agreed on eight recommendations, including two updated recommendations and one new recommendation added since the first version of the guideline. Narrative summaries of other interventions undergoing evaluations are also included. CONCLUSIONS: Using a combination of direct and indirect evidence, the panel was able to provide recommendations for eight specific questions on the use of PPE for HCP providing care for patients with suspected or known COVID-19. Where evidence was lacking, attempts were made to provide potential avenues for investigation. There remain significant gaps in the understanding of the transmission dynamics of SARS-CoV-2 and PPE recommendations may need to be modified in response to new evidence. These recommendations should serve as a minimum for PPE use in healthcare facilities and do not preclude decisions based on local risk assessments or requirements of local health jurisdictions or other regulatory bodies.

4.
Eur J Clin Microbiol Infect Dis ; 40(5): 1107-1111, 2021 May.
Article in English | MEDLINE | ID: mdl-33389258

ABSTRACT

Uncomplicated Enterobacteriaceae bacteremia is usually transient and may not require follow-up blood cultures (FUBC). This is a retrospective observational study conducted at a university-affiliated urban teaching hospital in Seattle, WA. All patients ≥ 18 years hospitalized between July 2014 and August 2019 with ≥ 1 positive blood culture for either Escherichia coli or Klebsiella species were included. The primary outcome was to determine the number and frequency of FUBC obtained, and the detection rate for positive FUBC. There were 335 episodes of E. coli and Klebsiella spp. bacteremia with genitourinary (54%) being the most common source. FUBC were sent in 299 (89.3%) patients, with a median of 3 (interquartile range (IQR): 2, 4) sets of FUBC drawn per patient. Persistent bacteremia occurred in 37 (12.4%) patients. In uncomplicated E. coli and Klebsiella spp. bacteremia, when the pre-test probability of persistent bacteremia is relatively low, FUBC may not be necessary in the absence of predisposing factors.


Subject(s)
Bacteremia/microbiology , Escherichia coli Infections/drug therapy , Escherichia coli , Klebsiella Infections/drug therapy , Klebsiella/isolation & purification , Aged , Anti-Bacterial Agents/therapeutic use , Antimicrobial Stewardship , Cohort Studies , Escherichia coli Infections/microbiology , Female , Humans , Klebsiella Infections/microbiology , Male , Middle Aged , Retrospective Studies
5.
Clin Infect Dis ; 71(16): 2211-2214, 2020 11 19.
Article in English | MEDLINE | ID: mdl-32166310

ABSTRACT

Thousands of people in the United States have required testing for SARS-CoV-2. Evaluation for a special pathogen is resource intensive. We report an innovative approach to home assessment that, in collaboration with public health, enables safe evaluation and specimen collection outside the healthcare setting, avoiding unnecessary exposures and resource utilization.


Subject(s)
COVID-19/diagnosis , House Calls , Patient Care Team , Public Health/methods , Specimen Handling/methods , COVID-19/prevention & control , Clinical Laboratory Techniques , Humans , SARS-CoV-2 , Technology Assessment, Biomedical/methods , United States
6.
Clin Infect Dis ; 71(1): 201-204, 2020 06 24.
Article in English | MEDLINE | ID: mdl-31630171

ABSTRACT

Two near-identical clinical Streptococcus pyogenes isolates of emm subtype emm43.4 with a pbp2x missense mutation (T553K) were detected. Minimum inhibitory concentrations (MICs) for ampicillin and amoxicillin were 8-fold higher, and the MIC for cefotaxime was 3-fold higher than for near-isogenic control isolates, consistent with a first step in developing ß-lactam resistance.


Subject(s)
Streptococcus pyogenes , beta-Lactam Resistance , Anti-Bacterial Agents/pharmacology , Humans , Microbial Sensitivity Tests , Mutation , Penicillin-Binding Proteins/genetics , Streptococcus pyogenes/genetics , beta-Lactam Resistance/genetics
7.
Clin Infect Dis ; 2020 Jul 27.
Article in English | MEDLINE | ID: mdl-32716496

ABSTRACT

BACKGROUND: SARS-CoV-2 is a highly transmissible virus that can infect health care personnel and patients in health care settings. Specific care activities, in particular aerosol-generating procedures, may have a higher risk of transmission. The rapid emergence and global spread of SARS-CoV-2 has created significant challenges in health care facilities, particularly with severe shortages of personal protective equipment (PPE) used to protect health care personnel (HCP). Evidence-based recommendations for what PPE to use in conventional, contingency, and crisis standards of care are needed. Where evidence is lacking, the development of specific research questions can help direct funders and investigators. OBJECTIVE: Develop evidence-based rapid guidelines intended to support HCP in their decisions about infection prevention when caring for patients with suspected or known COVID-19. METHODS: IDSA formed a multidisciplinary guideline panel including front-line clinicians, infectious disease specialists, experts in infection control and guideline methodologists with representation from the disciplines of preventive care, public health, medical microbiology, pediatrics, critical care medicine and gastroenterology. The process followed a rapid recommendation checklist. The panel prioritized questions and outcomes. Then a systematic review of the peer-reviewed and grey literature was conducted. The Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach was used to assess the certainty of evidence and make recommendations. RESULTS: The IDSA guideline panel agreed on eight recommendations and provided narrative summaries of other interventions undergoing evaluations. CONCLUSIONS: Using a combination of direct and indirect evidence, the panel was able to provide recommendations for eight specific questions on the use of PPE for HCP providing care for patients with suspected or known COVID-19. Where evidence was lacking, attempts were made to provide potential avenues for investigation. There remain significant gaps in the understanding of the transmission dynamics of SARS-CoV-2 and PPE recommendations may need to be modified in response to new evidence.

8.
Clin Infect Dis ; 71(10): 2702-2707, 2020 12 17.
Article in English | MEDLINE | ID: mdl-32548613

ABSTRACT

BACKGROUND: Healthcare workers (HCWs) who serve on the front lines of the coronavirus disease 2019 (COVID-19) pandemic have been at increased risk for infection due to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in some settings. Healthcare-acquired infection has been reported in similar epidemics, but there are limited data on the prevalence of COVID-19 among HCWs and their associated clinical outcomes in the United States. METHODS: We established 2 high-throughput employee testing centers in Seattle, Washington, with drive-through and walk-through options for symptomatic employees in the University of Washington Medicine system and its affiliated organizations. Using data from these testing centers, we report the prevalence of SARS-CoV-2 infection among symptomatic employees and describe the clinical characteristics and outcomes among employees with COVID-19. RESULTS: Between 12 March 2020 and 23 April 2020, 3477 symptomatic employees were tested for COVID-19 at 2 employee testing centers; 185 (5.3%) employees tested positive for COVID-19. The prevalence of SARS-CoV-2 was similar when comparing frontline HCWs (5.2%) with nonfrontline staff (5.5%). Among 174 positive employees reached for follow-up at least 14 days after diagnosis, 6 reported COVID-related hospitalization; all recovered. CONCLUSIONS: During the study period, we observed that the prevalence of positive SARS-CoV-2 tests among symptomatic HCWs was comparable to that of symptomatic nonfrontline staff. Reliable and rapid access to testing for employees is essential to preserve the health, safety, and availability of the healthcare workforce during this pandemic and to facilitate the rapid return of SARS-CoV-2-negative employees to work.


Subject(s)
COVID-19 , COVID-19 Testing , Health Personnel , Humans , Prevalence , SARS-CoV-2 , Washington/epidemiology
9.
Radiology ; 296(2): E26-E31, 2020 08.
Article in English | MEDLINE | ID: mdl-32687455

ABSTRACT

The coronavirus disease 2019 (COVID-19) pandemic initially manifested in the United States in the greater Seattle area and has rapidly progressed across the nation in the past 2 months, with the United States having the highest number of cases in the world. Radiology departments play a critical role in policy and guideline development both for the department and for the institutions, specifically in planning diagnostic screening, triage, and management of patients. In addition, radiology workflows, volumes, and access must be optimized in preparation for the expected surges in the number of patients with COVID-19. In this article, the authors discuss the processes that have been implemented at the University of Washington in managing the COVID-19 pandemic as well in preparing for patient surges, which may provide important guidance for other radiology departments who are in the early stages of preparation and management.


Subject(s)
Betacoronavirus , Coronavirus Infections/diagnostic imaging , Infection Control/organization & administration , Pneumonia, Viral/diagnostic imaging , Radiology Department, Hospital/organization & administration , Air Pollutants, Occupational/analysis , COVID-19 , COVID-19 Testing , Clinical Laboratory Techniques/methods , Coronavirus Infections/diagnosis , Coronavirus Infections/epidemiology , Coronavirus Infections/prevention & control , Coronavirus Infections/transmission , Health Policy , Humans , Infectious Disease Transmission, Patient-to-Professional/prevention & control , Mass Screening/methods , Pandemics/prevention & control , Personal Protective Equipment , Pneumonia, Viral/epidemiology , Pneumonia, Viral/prevention & control , Pneumonia, Viral/transmission , Practice Guidelines as Topic , SARS-CoV-2 , Washington
10.
Radiology ; 296(2): E26-E31, 2020 08.
Article in English | MEDLINE | ID: mdl-32267209

ABSTRACT

The coronavirus disease 2019 (COVID-19) pandemic initially manifested in the United States in the greater Seattle area and has rapidly progressed across the nation in the past 2 months, with the United States having the highest number of cases in the world. Radiology departments play a critical role in policy and guideline development both for the department and for the institutions, specifically in planning diagnostic screening, triage, and management of patients. In addition, radiology workflows, volumes, and access must be optimized in preparation for the expected surges in the number of patients with COVID-19. In this article, the authors discuss the processes that have been implemented at the University of Washington in managing the COVID-19 pandemic as well in preparing for patient surges, which may provide important guidance for other radiology departments who are in the early stages of preparation and management.


Subject(s)
COVID-19 , Health Policy , COVID-19/diagnosis , COVID-19/therapy , Disaster Planning , Hospitalization , Hospitals, University , Humans , Pandemics , Practice Guidelines as Topic , Radiology Department, Hospital/legislation & jurisprudence , Radiology Department, Hospital/organization & administration , Radiology Department, Hospital/statistics & numerical data , SARS-CoV-2 , Washington
11.
MMWR Morb Mortal Wkly Rep ; 69(14): 416-418, 2020 Apr 10.
Article in English | MEDLINE | ID: mdl-32271726

ABSTRACT

In the Seattle, Washington metropolitan area, where the first case of novel coronavirus 2019 disease (COVID-19) in the United States was reported (1), a community-level outbreak is ongoing with evidence of rapid spread and high morbidity and mortality among older adults in long-term care skilled nursing facilities (SNFs) (2,3). However, COVID-19 morbidity among residents of senior independent and assisted living communities, in which residents do not live as closely together as do residents in SNFs and do not require skilled nursing services, has not been described. During March 5-9, 2020, two residents of a senior independent and assisted living community in Seattle (facility 1) were hospitalized with confirmed COVID-19 infection; on March 6, social distancing and other preventive measures were implemented in the community. UW Medicine (the health system linked to the University of Washington), Public Health - Seattle & King County, and CDC conducted an investigation at the facility. On March 10, all residents and staff members at facility 1 were tested for SARS-CoV-2, the virus that causes COVID-19, and asked to complete a questionnaire about their symptoms; all residents were tested again 7 days later. Among 142 residents and staff members tested during the initial phase, three of 80 residents (3.8%) and two of 62 staff members (3.2%) had positive test results. The three residents had no symptoms at the time of testing, although one reported an earlier cough that had resolved. A fourth resident, who had negative test results in the initial phase, had positive test results 7 days later. This resident was asymptomatic on both days. Possible explanations for so few cases of COVID-19 in this residential community compared with those in several Seattle SNFs with high morbidity and mortality include more social distancing among residents and less contact with health care providers. In addition, early implementation of stringent isolation and protective measures after identification of two COVID-19 cases might have been effective in minimizing spread of the virus in this type of setting. When investigating a potential outbreak of COVID-19 in senior independent and assisted living communities, symptom screening is unlikely to be sufficient to identify all persons infected with SARS-CoV-2. Adherence to CDC guidance to prevent COVID-19 transmission in senior independent and assisted living communities (4) could be instrumental in preventing a facility outbreak.


Subject(s)
Assisted Living Facilities , Betacoronavirus/isolation & purification , Coronavirus Infections/transmission , Disease Outbreaks , Housing for the Elderly , Adolescent , Adult , Aged , Aged, 80 and over , Asymptomatic Diseases , Centers for Disease Control and Prevention, U.S. , Coronavirus Infections/epidemiology , Coronavirus Infections/prevention & control , Female , Humans , Male , Middle Aged , Practice Guidelines as Topic , SARS-CoV-2 , United States , Washington/epidemiology , Young Adult
14.
Clin Infect Dis ; 67(8): 1285-1287, 2018 09 28.
Article in English | MEDLINE | ID: mdl-29668905

ABSTRACT

A needs assessment survey of infectious diseases (ID) training program directors identified gaps in educational resources for training and evaluating ID fellows in antimicrobial stewardship. An Infectious Diseases Society of America-sponsored core curriculum was developed to address that need.


Subject(s)
Antimicrobial Stewardship , Communicable Diseases , Curriculum , Education, Medical, Graduate , Fellowships and Scholarships , Humans , Needs Assessment , Preceptorship , Surveys and Questionnaires
16.
J Intensive Care Med ; 33(2): 134-141, 2018 Feb.
Article in English | MEDLINE | ID: mdl-28486867

ABSTRACT

OBJECTIVES: We sought to evaluate clinical outcomes of intensive care unit (ICU) patients following a hospital-wide initiative of prolonged piperacillin/tazobactam (PIP/TAZ) infusion. METHODS: Retrospective observational study of patients >18 years old who was hospitalized in the ICU receiving PIP/TAZ for >72 hours during the preimplementation (June 1, 2010 to May 31, 2011) and postimplementation (July 7, 2011 to June 30, 2014) periods. RESULTS: There were 124 and 429 patients who met inclusion criteria with average age of 54.3 and 56.9 years, and average duration of PIP/TAZ therapy was 6.1 ± 2.8 days and 5.9 ± 3.4 days in the pre- and postimplementation period, respectively. Intensive care unit and hospital length of stay (LOS) following initiation of PIP/TAZ were 8.0 ± 8.4 days versus 6.4 ± 6.8 days and 26.3 ± 22.8 days versus 20.4 ± 16.1 days among patients in the pre- and postimplementation periods, respectively. Compared to patients who received intermittent PIP/TAZ infusion, the adjusted difference in ICU and hospital LOS was 0.6 ± 0.8 days (95% confidence interval [CI]: -0.9 to 2.1 days) and 5.6 ± 2.1 days (95% CI: 1.4 - 9.7 days) shorter among patients who received prolonged PIP/TAZ infusion. At hospital discharge, 19 (15.3%) intermittent infusion and 74 (17.2%) prolonged infusion recipients had died. In comparison to intermittent infusion recipients, the adjusted odds ratio for mortality was 1.17 (95% CI: 0.65-2.1) with prolonged infusion. CONCLUSION: Our study demonstrated a reduction in hospital LOS with prolonged PIP/TAZ infusion among critically ill patients. Randomized trials are needed to further validate these findings.


Subject(s)
Anti-Bacterial Agents/administration & dosage , Bacterial Infections/drug therapy , Critical Illness , Length of Stay/statistics & numerical data , Penicillanic Acid/analogs & derivatives , Aged , Female , Hospital Mortality , Humans , Infusions, Intravenous , Intensive Care Units , Linear Models , Logistic Models , Male , Middle Aged , Multivariate Analysis , Odds Ratio , Penicillanic Acid/administration & dosage , Piperacillin/administration & dosage , Piperacillin, Tazobactam Drug Combination , Retrospective Studies
17.
J Intensive Care Med ; 32(4): 264-272, 2017 May.
Article in English | MEDLINE | ID: mdl-26130580

ABSTRACT

PURPOSE: To use the 2010 to 2011 data collected by structured chart review to provide a detailed up-to-date description of the epidemiology and microbiology of the sepsis syndromes. METHODS: Prospective observational study conducted at a university-affiliated urban teaching hospital and level-1 trauma and burn center. All adult patients who triggered a Code Sepsis in the emergency department (ED) between January 2010 and December 2011 were included. RESULTS: One hundred eighty four patients presented with a verified sepsis syndrome and triggered a Code Sepsis in the ED during the studied time period. The mean hospital and intensive care unit length of stays (LOSs) were 15.4 (interquartile range [IQR] = 14) and 6.7 (IQR = 5) days, respectively. The total inpatient mortality was 19% (n = 35). Patients with an unspecified source of infection and those without an isolated pathogen had the highest inpatient mortality, 42.1% (n = 8) and 23.3% (n = 10), respectively. CONCLUSION: Hospital mortality and hospital LOS of sepsis are similar to those reported in other observational studies. Our study confirms a decline in the mortality of sepsis predicted by earlier longitudinal studies and should prompt a resurgence of epidemiological research of the sepsis syndromes in the United States.


Subject(s)
Anti-Bacterial Agents/therapeutic use , Burn Units , Hospitals, Teaching , Sepsis/therapy , Trauma Centers , Adult , Female , Hospital Mortality , Humans , Intensive Care Units , Length of Stay/statistics & numerical data , Male , Middle Aged , Prospective Studies , Sepsis/microbiology , Sepsis/mortality , Severity of Illness Index , Syndrome , Washington/epidemiology
18.
Healthc Financ Manage ; 70(3): 38-41, 2016 Mar.
Article in English | MEDLINE | ID: mdl-27183757

ABSTRACT

An institution that uses a value-based approach to manage and prevent problems related to the suboptimal use of antibiotics will improve its bottom line through: Efficiencies brought about by aggressive management of institutional resources. Reductions in hospital admission/readmission. Fewer complications. Better transitions in care. Increased revenues through preferential referrals.


Subject(s)
Anti-Infective Agents/administration & dosage , Drug Resistance, Microbial , Quality of Health Care/economics , Cost Control , Economics, Hospital , Value-Based Purchasing
20.
J Med Virol ; 87(12): 2021-6, 2015 Dec.
Article in English | MEDLINE | ID: mdl-26017150

ABSTRACT

Rapid PCR-based influenza tests are increasingly used as point-of-care diagnostics in hospitals and clinics. To our knowledge, no prior studies have described clinical outcomes with implementation of rapid PCR-based influenza tests in hospitalized adult inpatients. Electronic medical records were used to assess differences in laboratory testing time and antiviral use among a subset of 175 consecutive adult inpatients tested for influenza in two respiratory seasons before and after implementation of rapid PCR-based influenza testing at an academic medical center. Of the 350 hospitalized inpatients included in this analysis, 96 (27%) were over 65 years of age and 308 (88%) had a comorbid condition. The overall time to result decreased significantly from 25.2 to 1.7 hr (P < 0.001) after implementation of rapid PCR-based influenza testing. Among influenza-negative patients, the frequency of oseltamivir initiation remained unchanged (before: 43% vs. after: 45%; P = 0.60), though the median duration of oseltamivir was significantly decreased from 1.1 to 0.0 days (P < 0.001). By providing an earlier result to clinicians, rapid PCR-based influenza tests may decrease unnecessary antiviral use among adult inpatients who test negative for influenza.


Subject(s)
Antiviral Agents/therapeutic use , Hospitalization , Influenza, Human/diagnosis , Molecular Diagnostic Techniques/methods , Polymerase Chain Reaction/methods , Adolescent , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Oseltamivir/therapeutic use , Pregnancy , Retrospective Studies , Time Factors , Young Adult
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