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Low pre-vaccination SARS-CoV-2 seroprevalence in Finnish health care workers: a prospective cohort study

Julkunen Ilkka; Hytönen Jukka; Oksi Jarmo; Tähtinen Paula A; Kainulainen Leena; Waris Matti; Vuorinen Tytti; Lempainen Johanna; Peltola Ville; Kakkola Laura; Ivaska Lauri; Jalkanen Pinja

Low pre-vaccination SARS-CoV-2 seroprevalence in Finnish health care workers: a prospective cohort study

Julkunen Ilkka
Hytönen Jukka
Oksi Jarmo
Tähtinen Paula A
Kainulainen Leena
Waris Matti
Vuorinen Tytti
Lempainen Johanna
Peltola Ville
Kakkola Laura
Ivaska Lauri
Jalkanen Pinja
Katso/Avaa
23744235.2022.pdf (1.177Mb)
Lataukset: 

TAYLOR & FRANCIS LTD
doi:10.1080/23744235.2022.2027008
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Julkaisun pysyvä osoite on:
https://urn.fi/URN:NBN:fi-fe2022081155055
Tiivistelmä

Background: Health care workers are at risk of acquiring SARS-CoV-2 infection. Our aim was to study the prevalence of SARS-CoV-2 nucleoprotein and spike protein specific antibodies in health care workers with occupational exposure to COVID-19 in Turku, Finland, from May to December 2020.

Methods: Health care workers of Turku University Hospital units caring for COVID-19 patients or handling clinical SARS-CoV-2 samples were invited to participate in the study. The presence of SARS-CoV-2 nucleoprotein and spike protein specific IgG antibodies were analysed with in-house enzyme immunoassay.

Results: At study enrolment, only one of the 222 (0.5%) study participants was seropositive for SARS-CoV-2 protein specific antibodies. Two additional study participants (2/222, 0.9%) seroconverted during the follow-up. All these participants were diagnosed with a RT-PCR-positive COVID-19 infection before turning seropositive.

Conclusion: In our study population, the prevalence of SARS-CoV-2 seropositivity remained low. The absence of seropositive cases without previous RT-PCR confirmed infections demonstrate good access to diagnostics. In addition to high vaccine coverage, high standards of infection prevention practices and use of standard personal protective equipment seem sufficient in preventing occupational SARS-CoV-2 infection in a setting with low number of circulating virus. However, it remains unclear whether similar protective practices would also be effective against more transmissible SARS-CoV-2 variants.

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  • Rinnakkaistallenteet [19207]

Turun yliopiston kirjasto | Turun yliopisto
julkaisut@utu.fi | Tietosuoja | Saavutettavuusseloste
 

 

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