Session Type: ePosters
Session Title: ePosters
Authors(s): M.V. Montilva Ludewig, A.F. Wendel, M. Malecki, S. Teves, F. Mattner
Authors Affiliations(s): Institute of Hygiene, Cologne Merheim Medical Centre, University Hospital of Witten/Herdecke, Germany
Background:
In December 2019, a novel coronavirus (SARS-CoV-2) was identified in Wuhan (China), causing coronavirus disease 2019 (COVID-19). Nosocomial transmissions are described in different healthcare settings. However, there is no consensus definition for hospital-acquired SARS-CoV-2 infections. A surveillance was established at two medical centers in Cologne (tertiary care center A, 700 beds, and secondary care center B, 400 beds) from March 2020 onwards.
Methods:Clinical and epidemiological parameters of all patients and healthcare workers (HCW) were collected. Definite and probable hospital-acquired or community-acquired SARS-CoV-2 infections (HA-CoV or CA-CoV) were defined based on onset of symptoms, day of first positive test, day of admission, results of admission screening, reason for admission, preceding in-hospital contact with a COVID-19 case, previous hospital stay, defined outbreaks or appropriate use of personal protective equipment.
Results:At Hospital A, 511 COVID-19 cases were confirmed: 404 patients (320 inpatients, 84 outpatients) and 107 employees (88 HCW, 19 non-HCW). Among the HCW (n=88), 25 (28.4%) were definite HA-CoV, 16 (18.2%) probable HA-CoV and 47 (53.4%) CA-CoV. In the inpatients group (n=320), 14 (4.4%) were definite HA-CoV and 306 (95.6%) CA-CoV. At Hospital B, 307 cases were confirmed: 251 patients (205 inpatients, 46 outpatients) and 56 employees (40 HCW, 16 non-HCW). Among the HCW (n=40), 13 (32.5%) were definite HA-CoV, six (15.0%) probable HA-CoV and 21 (52.5%) CA-CoV. In the inpatients group, (n=205) 94.1% were CA-CoV, 4.9% definite HA-CoV, and 1% probable HA-CoV. During the study period nine outbreaks were reported in both hospitals, all but one during the second wave and mostly amongst healthcare workers.
Conclusions:This study highlights the different SARS-CoV-2 transmission dynamics over time. Nosocomial transmission occurred almost exclusively during the second wave and was mainly driven by hospital-acquired SARS-CoV-2 infections among healthcare workers. A well-structured surveillance including patients and HCW as well as monitoring contacts is needed in the medical setting to prevent hospital-acquired infections. In this study, we propose a definition for healthcare-acquired SARS-CoV-2 infections among patients or HCW; nevertheless international consensus definitions are needed to differentiate between community- and hospital-acquired SARS-CoV-2 infections.
Keyword(s): SARS-CoV-2, Surveillance, Hospital-acquired infectionsSession Type: ePosters
Session Title: ePosters
Authors(s): M.V. Montilva Ludewig, A.F. Wendel, M. Malecki, S. Teves, F. Mattner
Authors Affiliations(s): Institute of Hygiene, Cologne Merheim Medical Centre, University Hospital of Witten/Herdecke, Germany
Background:
In December 2019, a novel coronavirus (SARS-CoV-2) was identified in Wuhan (China), causing coronavirus disease 2019 (COVID-19). Nosocomial transmissions are described in different healthcare settings. However, there is no consensus definition for hospital-acquired SARS-CoV-2 infections. A surveillance was established at two medical centers in Cologne (tertiary care center A, 700 beds, and secondary care center B, 400 beds) from March 2020 onwards.
Methods:Clinical and epidemiological parameters of all patients and healthcare workers (HCW) were collected. Definite and probable hospital-acquired or community-acquired SARS-CoV-2 infections (HA-CoV or CA-CoV) were defined based on onset of symptoms, day of first positive test, day of admission, results of admission screening, reason for admission, preceding in-hospital contact with a COVID-19 case, previous hospital stay, defined outbreaks or appropriate use of personal protective equipment.
Results:At Hospital A, 511 COVID-19 cases were confirmed: 404 patients (320 inpatients, 84 outpatients) and 107 employees (88 HCW, 19 non-HCW). Among the HCW (n=88), 25 (28.4%) were definite HA-CoV, 16 (18.2%) probable HA-CoV and 47 (53.4%) CA-CoV. In the inpatients group (n=320), 14 (4.4%) were definite HA-CoV and 306 (95.6%) CA-CoV. At Hospital B, 307 cases were confirmed: 251 patients (205 inpatients, 46 outpatients) and 56 employees (40 HCW, 16 non-HCW). Among the HCW (n=40), 13 (32.5%) were definite HA-CoV, six (15.0%) probable HA-CoV and 21 (52.5%) CA-CoV. In the inpatients group, (n=205) 94.1% were CA-CoV, 4.9% definite HA-CoV, and 1% probable HA-CoV. During the study period nine outbreaks were reported in both hospitals, all but one during the second wave and mostly amongst healthcare workers.
Conclusions:This study highlights the different SARS-CoV-2 transmission dynamics over time. Nosocomial transmission occurred almost exclusively during the second wave and was mainly driven by hospital-acquired SARS-CoV-2 infections among healthcare workers. A well-structured surveillance including patients and HCW as well as monitoring contacts is needed in the medical setting to prevent hospital-acquired infections. In this study, we propose a definition for healthcare-acquired SARS-CoV-2 infections among patients or HCW; nevertheless international consensus definitions are needed to differentiate between community- and hospital-acquired SARS-CoV-2 infections.
Keyword(s): SARS-CoV-2, Surveillance, Hospital-acquired infections
Institute of Hygiene, Cologne Merheim Medical Centre, University Hospital of Witten/Herdecke, Cologne, Germany
Session Type: ePosters
Session Title: ePosters
Authors(s): M.V. Montilva Ludewig, A.F. Wendel, M. Malecki, S. Teves, F. Mattner
Authors Affiliations(s): Institute of Hygiene, Cologne Merheim Medical Centre, University Hospital of Witten/Herdecke, Germany
Background:
In December 2019, a novel coronavirus (SARS-CoV-2) was identified in Wuhan (China), causing coronavirus disease 2019 (COVID-19). Nosocomial transmissions are described in different healthcare settings. However, there is no consensus definition for hospital-acquired SARS-CoV-2 infections. A surveillance was established at two medical centers in Cologne (tertiary care center A, 700 beds, and secondary care center B, 400 beds) from March 2020 onwards.
Methods:Clinical and epidemiological parameters of all patients and healthcare workers (HCW) were collected. Definite and probable hospital-acquired or community-acquired SARS-CoV-2 infections (HA-CoV or CA-CoV) were defined based on onset of symptoms, day of first positive test, day of admission, results of admission screening, reason for admission, preceding in-hospital contact with a COVID-19 case, previous hospital stay, defined outbreaks or appropriate use of personal protective equipment.
Results:At Hospital A, 511 COVID-19 cases were confirmed: 404 patients (320 inpatients, 84 outpatients) and 107 employees (88 HCW, 19 non-HCW). Among the HCW (n=88), 25 (28.4%) were definite HA-CoV, 16 (18.2%) probable HA-CoV and 47 (53.4%) CA-CoV. In the inpatients group (n=320), 14 (4.4%) were definite HA-CoV and 306 (95.6%) CA-CoV. At Hospital B, 307 cases were confirmed: 251 patients (205 inpatients, 46 outpatients) and 56 employees (40 HCW, 16 non-HCW). Among the HCW (n=40), 13 (32.5%) were definite HA-CoV, six (15.0%) probable HA-CoV and 21 (52.5%) CA-CoV. In the inpatients group, (n=205) 94.1% were CA-CoV, 4.9% definite HA-CoV, and 1% probable HA-CoV. During the study period nine outbreaks were reported in both hospitals, all but one during the second wave and mostly amongst healthcare workers.
Conclusions:This study highlights the different SARS-CoV-2 transmission dynamics over time. Nosocomial transmission occurred almost exclusively during the second wave and was mainly driven by hospital-acquired SARS-CoV-2 infections among healthcare workers. A well-structured surveillance including patients and HCW as well as monitoring contacts is needed in the medical setting to prevent hospital-acquired infections. In this study, we propose a definition for healthcare-acquired SARS-CoV-2 infections among patients or HCW; nevertheless international consensus definitions are needed to differentiate between community- and hospital-acquired SARS-CoV-2 infections.
Keyword(s): SARS-CoV-2, Surveillance, Hospital-acquired infectionsSession Type: ePosters
Session Title: ePosters
Authors(s): M.V. Montilva Ludewig, A.F. Wendel, M. Malecki, S. Teves, F. Mattner
Authors Affiliations(s): Institute of Hygiene, Cologne Merheim Medical Centre, University Hospital of Witten/Herdecke, Germany
Background:
In December 2019, a novel coronavirus (SARS-CoV-2) was identified in Wuhan (China), causing coronavirus disease 2019 (COVID-19). Nosocomial transmissions are described in different healthcare settings. However, there is no consensus definition for hospital-acquired SARS-CoV-2 infections. A surveillance was established at two medical centers in Cologne (tertiary care center A, 700 beds, and secondary care center B, 400 beds) from March 2020 onwards.
Methods:Clinical and epidemiological parameters of all patients and healthcare workers (HCW) were collected. Definite and probable hospital-acquired or community-acquired SARS-CoV-2 infections (HA-CoV or CA-CoV) were defined based on onset of symptoms, day of first positive test, day of admission, results of admission screening, reason for admission, preceding in-hospital contact with a COVID-19 case, previous hospital stay, defined outbreaks or appropriate use of personal protective equipment.
Results:At Hospital A, 511 COVID-19 cases were confirmed: 404 patients (320 inpatients, 84 outpatients) and 107 employees (88 HCW, 19 non-HCW). Among the HCW (n=88), 25 (28.4%) were definite HA-CoV, 16 (18.2%) probable HA-CoV and 47 (53.4%) CA-CoV. In the inpatients group (n=320), 14 (4.4%) were definite HA-CoV and 306 (95.6%) CA-CoV. At Hospital B, 307 cases were confirmed: 251 patients (205 inpatients, 46 outpatients) and 56 employees (40 HCW, 16 non-HCW). Among the HCW (n=40), 13 (32.5%) were definite HA-CoV, six (15.0%) probable HA-CoV and 21 (52.5%) CA-CoV. In the inpatients group, (n=205) 94.1% were CA-CoV, 4.9% definite HA-CoV, and 1% probable HA-CoV. During the study period nine outbreaks were reported in both hospitals, all but one during the second wave and mostly amongst healthcare workers.
Conclusions:This study highlights the different SARS-CoV-2 transmission dynamics over time. Nosocomial transmission occurred almost exclusively during the second wave and was mainly driven by hospital-acquired SARS-CoV-2 infections among healthcare workers. A well-structured surveillance including patients and HCW as well as monitoring contacts is needed in the medical setting to prevent hospital-acquired infections. In this study, we propose a definition for healthcare-acquired SARS-CoV-2 infections among patients or HCW; nevertheless international consensus definitions are needed to differentiate between community- and hospital-acquired SARS-CoV-2 infections.
Keyword(s): SARS-CoV-2, Surveillance, Hospital-acquired infections