Healthcare institutions' recommendation regarding the use of FFP-2 masks and SARS-CoV-2 seropositivity among healthcare workers: a multicenter longitudinal cohort study

Article Infectious Diseases

Low rate of COVID-19 seroconversion in health-care workers at a Department of Infectious Diseases in Sweden during the later phase of the first wave; a prospective longitudinal seroepidemiological study

Mulki Rashid-Abdi et al.

Summary: The study found a low rate of seroconversion for SARS-CoV-2 IgG antibodies in a high-exposure environment, suggesting that it is possible to prevent transmission of the virus by complying with adequate infection control guidelines.

INFECTIOUS DISEASES (2021)

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Article Immunology

Seroprevalence and Correlates of SARS-CoV-2 Antibodies in Health Care Workers in Chicago

John T. Wilkins et al.

Summary: The study found that healthcare workers are at risk for SARS-CoV-2 infection due to longer-duration exposures to people infected with SARS-CoV-2 within healthcare settings and their communities of residence.

OPEN FORUM INFECTIOUS DISEASES (2021)

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Article Infectious Diseases

Association between SARS-CoV-2 and exposure risks in health care workers and university employees - a cross-sectional study

David Nygren et al.

Summary: This study revealed a higher risk of acquiring SARS-CoV-2 in health care workers in COVID-19 units, despite excluding units with known outbreaks. It also found that health care workers in non-COVID-19 units had a similar risk to university employees, suggesting the need for further measures to improve the safety of health care workers.

INFECTIOUS DISEASES (2021)

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Article Anesthesiology

Prevalence of IgM and IgG antibodies to SARS-CoV-2 in health care workers at a tertiary care New York hospital during the Spring COVID-19 surge

Lillian R. Talbot et al.

Summary: This study found that despite exposure to COVID-19 patients, healthcare workers had a similar prevalence of antibodies compared to the general population and another cohort of healthcare workers in New York. Healthcare workers with higher exposure rates were not more likely to have been infected with COVID-19.

PERIOPERATIVE MEDICINE (2021)

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Article Anesthesiology

The effect of respiratory activity, non-invasive respiratory support and facemasks on aerosol generation and its relevance to COVID-19

N. M. Wilson et al.

Summary: Respiratory activities, including exertional breathing and coughing, generate significantly more aerosols than non-invasive respiratory therapies, which can reduce total emissions. The risk of aerosol exposure is underappreciated and warrants widespread, targeted interventions.

ANAESTHESIA (2021)

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Article Infectious Diseases

Non-occupational and occupational factors associated with specific SARS-CoV-2 antibodies among hospital workers-A multicentre cross-sectional study

Christian R. Kahlert et al.

Summary: This study assessed the seroprevalence and risk factors for SARS-CoV2 seropositivity among healthcare workers, highlighting associations with non-occupational exposures, blood type, gender, occupation, and other factors. Living with COVID-19-positive households was found to have the strongest association with seropositivity, and potentially modifiable work-related risk factors were identified.

CLINICAL MICROBIOLOGY AND INFECTION (2021)

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Article Environmental Sciences

SARS-CoV-2 Seroprevalence in Healthcare Workers in Germany: A Follow-Up Study

Johannes Korth et al.

Summary: A study evaluated the SARS-CoV-2 IgG antibody status in 450 healthcare workers at the University Hospital Essen in Germany, showing an increasing trend in overall seroprevalence over one year, with no significant differences in infection rates between healthcare workers stratified by contact frequency. Hygiene standards appeared to be effective in preventing patient-to-staff virus transmission in healthcare workers in western Germany.

INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH (2021)

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Editorial Material Critical Care Medicine

Aerosol generating procedures: are they of relevance for transmission of SARS-CoV-2?

Fergus Hamilton et al.

LANCET RESPIRATORY MEDICINE (2021)

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Article Multidisciplinary Sciences

Face masks effectively limit the probability of SARS-CoV-2 transmission

Yafang Cheng et al.

Summary: The effectiveness of masks in preventing virus spread depends on the virus abundance level; surgical masks are effective in low-virus environments, while more advanced masks are needed in potentially virus-rich indoor settings like medical centers and hospitals. Masks work best when combined with other preventive measures such as ventilation and distancing.

SCIENCE (2021)

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Editorial Material Public, Environmental & Occupational Health