Tags

Type your tag names separated by a space and hit enter

Source and symptoms of COVID-19 among hospital workers in Milan.
Occup Med (Lond). 2020 12 30; 70(9):672-679.OM

Abstract

BACKGROUND

Healthcare workers (HCWs) are commonly infected by SARS-CoV-2 and represent one of the most vulnerable groups. Adequate prevention strategies are necessary to guarantee HCWs' safety, as well as to prevent dissemination of the infection among patients.

AIMS

To describe a case series of SARS-CoV-2-positive HCWs in a large public healthcare organization in Milan (Italy) during the most devastating weeks of the epidemic and analyse the sources, symptoms and duration of SARS-CoV-2 infection.

METHODS

This study included 172 SARS-CoV-2-positive HCWs who were infected between the 25th of February and the 7th of April 2020. A nasopharyngeal swab (NPS) and RT-PCR were used to indicate.

RESULTS

Initially, the most common sources of infection were other positive HCWs (49%). Medical doctors and nursing assistants were most frequently infected, with infection rates of 53/1000 and 50/1000, respectively. COVID-19 departments were less affected than internal medicine, surgery, intensive care, or emergency room. The most commonly reported symptom was mild cough, while loss of smell (anosmia) and loss of taste (ageusia) were reported as moderate and severe by 30-40% of HCWs. The time necessary for 50% of workers to recover from the infection was 23 days, while it took 41 days for 95% of HCWs to become virus-free.

CONCLUSIONS

HCWs are commonly infected due to close contacts with other positive HCWs, and non-COVID departments were most affected. Most HCWs were asymptomatic or subclinical but contact tracing and testing of asymptomatic HCWs help identify and isolate infected workers.

Authors+Show Affiliations

Department of Health Sciences, University of Milan, Milan, Italy. Occupational Health Unit, International Centre for Rural Health, Saints Paolo and Carlo Hospitals, Milan, Italy.Department of Health Sciences, University of Milan, Milan, Italy. Occupational Health Unit, International Centre for Rural Health, Saints Paolo and Carlo Hospitals, Milan, Italy.Occupational Health Unit, International Centre for Rural Health, Saints Paolo and Carlo Hospitals, Milan, Italy.Occupational Health Unit, International Centre for Rural Health, Saints Paolo and Carlo Hospitals, Milan, Italy. Postgraduate School of Occupational Medicine, University of Milan, Milan, Italy.Occupational Health Unit, International Centre for Rural Health, Saints Paolo and Carlo Hospitals, Milan, Italy. Postgraduate School of Occupational Medicine, University of Milan, Milan, Italy.Occupational Health Unit, International Centre for Rural Health, Saints Paolo and Carlo Hospitals, Milan, Italy.Occupational Health Unit, International Centre for Rural Health, Saints Paolo and Carlo Hospitals, Milan, Italy.Central Health Care Management, Saints Paolo and Carlo Hospitals, Milan, Italy.Central Health Care Management, Saints Paolo and Carlo Hospitals, Milan, Italy.Central Health Care Management, Saints Paolo and Carlo Hospitals, Milan, Italy.Central Health Care Management, Saints Paolo and Carlo Hospitals, Milan, Italy.Central Health Care Management, Saints Paolo and Carlo Hospitals, Milan, Italy.Central Health Care Management, Saints Paolo and Carlo Hospitals, Milan, Italy.Laboratory of Virology and Microbiology Analysis, Saints Paolo and Carlo Hospitals, Milan, Italy.Department of Health Sciences, University of Milan, Milan, Italy. Unit of Pulmonology, Saints Paolo and Carlo Hospitals, Milan, Italy.Department of Health Sciences, University of Milan, Milan, Italy. Occupational Health Unit, International Centre for Rural Health, Saints Paolo and Carlo Hospitals, Milan, Italy.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

33269398

Citation

Mandić-Rajčević, S, et al. "Source and Symptoms of COVID-19 Among Hospital Workers in Milan." Occupational Medicine (Oxford, England), vol. 70, no. 9, 2020, pp. 672-679.
Mandić-Rajčević S, Masci F, Crespi E, et al. Source and symptoms of COVID-19 among hospital workers in Milan. Occup Med (Lond). 2020;70(9):672-679.
Mandić-Rajčević, S., Masci, F., Crespi, E., Franchetti, S., Longo, A., Bollina, I., Velocci, S., Amorosi, A., Baldelli, R., Boselli, L., Negroni, L., Zà, A., Orfeo, N. V., Ortisi, G., Centanni, S., & Colosio, C. (2020). Source and symptoms of COVID-19 among hospital workers in Milan. Occupational Medicine (Oxford, England), 70(9), 672-679. https://doi.org/10.1093/occmed/kqaa201
Mandić-Rajčević S, et al. Source and Symptoms of COVID-19 Among Hospital Workers in Milan. Occup Med (Lond). 2020 12 30;70(9):672-679. PubMed PMID: 33269398.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Source and symptoms of COVID-19 among hospital workers in Milan. AU - Mandić-Rajčević,S, AU - Masci,F, AU - Crespi,E, AU - Franchetti,S, AU - Longo,A, AU - Bollina,I, AU - Velocci,S, AU - Amorosi,A, AU - Baldelli,R, AU - Boselli,L, AU - Negroni,L, AU - Zà,A, AU - Orfeo,N V, AU - Ortisi,G, AU - Centanni,S, AU - Colosio,C, PY - 2020/12/4/pubmed PY - 2021/1/14/medline PY - 2020/12/3/entrez KW - COVID-19 symptoms KW - Contact tracing KW - SARS-CoV-2 KW - healthcare personnel KW - infection rate SP - 672 EP - 679 JF - Occupational medicine (Oxford, England) JO - Occup Med (Lond) VL - 70 IS - 9 N2 - BACKGROUND: Healthcare workers (HCWs) are commonly infected by SARS-CoV-2 and represent one of the most vulnerable groups. Adequate prevention strategies are necessary to guarantee HCWs' safety, as well as to prevent dissemination of the infection among patients. AIMS: To describe a case series of SARS-CoV-2-positive HCWs in a large public healthcare organization in Milan (Italy) during the most devastating weeks of the epidemic and analyse the sources, symptoms and duration of SARS-CoV-2 infection. METHODS: This study included 172 SARS-CoV-2-positive HCWs who were infected between the 25th of February and the 7th of April 2020. A nasopharyngeal swab (NPS) and RT-PCR were used to indicate. RESULTS: Initially, the most common sources of infection were other positive HCWs (49%). Medical doctors and nursing assistants were most frequently infected, with infection rates of 53/1000 and 50/1000, respectively. COVID-19 departments were less affected than internal medicine, surgery, intensive care, or emergency room. The most commonly reported symptom was mild cough, while loss of smell (anosmia) and loss of taste (ageusia) were reported as moderate and severe by 30-40% of HCWs. The time necessary for 50% of workers to recover from the infection was 23 days, while it took 41 days for 95% of HCWs to become virus-free. CONCLUSIONS: HCWs are commonly infected due to close contacts with other positive HCWs, and non-COVID departments were most affected. Most HCWs were asymptomatic or subclinical but contact tracing and testing of asymptomatic HCWs help identify and isolate infected workers. SN - 1471-8405 UR - https://www.unboundmedicine.com/medline/citation/33269398/Source_and_symptoms_of_COVID_19_among_hospital_workers_in_Milan_ L2 - https://academic.oup.com/occmed/article-lookup/doi/10.1093/occmed/kqaa201 DB - PRIME DP - Unbound Medicine ER -