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Risk for SARS-CoV-2 infection in healthcare workers outside hospitals: A real-life immuno-virological study during the first wave of the COVID-19 epidemic.
Fröberg, Maria; Hassan, Sadaf Sakina; Pimenoff, Ville N; Akterin, Susanne; Conneryd Lundgren, Kalle; Elfström, K Miriam; Dillner, Joakim.
  • Fröberg M; Gustavsberg Primary Care Center, Region Stockholm, Gustavsberg, Sweden.
  • Hassan SS; Akademiskt Primärvårdscentrum, Region Stockholm, Stockholm, Sweden.
  • Pimenoff VN; Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden.
  • Akterin S; Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden.
  • Conneryd Lundgren K; Karolinska University Hospital, Stockholm, Sweden.
  • Elfström KM; Karolinska University Hospital, Stockholm, Sweden.
  • Dillner J; Medical Diagnostics Karolinska, Karolinska University Hospital, Stockholm, Sweden.
PLoS One ; 16(9): e0257854, 2021.
Article in English | MEDLINE | ID: covidwho-1440992
ABSTRACT

OBJECTIVES:

Most COVID-19 related infections and deaths may occur in healthcare outside hospitals. Here we explored SARS-CoV-2 infections among healthcare workers (HCWs) in this setting.

DESIGN:

All healthcare providers in Stockholm, Sweden were asked to recruit HCWs at work for a study of past or present SARS-CoV-2 infections among HCWs. Study participants This study reports the results from 839 HCWs, mostly employees of primary care centers, sampled in June 2020.

RESULTS:

SARS-CoV-2 seropositivity was found among 12% (100/839) of HCWs, ranging from 0% to 29% between care units. Seropositivity decreased by age and was highest among HCWs <40 years of age. Within this age group there was 19% (23/120) seropositivity among women and 11% (15/138) among men (p<0.02). Current infection, as measured using PCR, was found in only 1% and the typical testing pattern of pre-symptomatic potential "superspreaders" found in only 2/839 subjects.

CONCLUSIONS:

Previous SARS-CoV-2 infections were common among younger HCWs in this setting. Pre-symptomatic infection was uncommon, in line with the strong variability in SARS-CoV-2 exposure between units. Prioritizing infection prevention and control including sufficient and adequate personal protective equipment, and vaccination for all HCWs are important to prevent nosocomial infections and infections as occupational injuries during an ongoing pandemic.
Subject(s)

Full text: Available Collection: International databases Database: MEDLINE Document Type: Article Main subject: Health Personnel / COVID-19 Subject: Health Personnel / COVID-19 Type of study: Etiology study / Risk factors Language: English Journal: PLoS One Clinical aspect: Etiology Year: 2021

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Full text: Available Collection: International databases Database: MEDLINE Document Type: Article Main subject: Health Personnel / COVID-19 Subject: Health Personnel / COVID-19 Type of study: Etiology study / Risk factors Language: English Journal: PLoS One Clinical aspect: Etiology Year: 2021
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