Health
Studies detect high surface viral contamination, air around covid patients
Research published in journals Nature We have provided further evidence that SARS-CoV2, the virus that causes covid-19, can be transmitted via the air or the surface. This study revealed viral contamination of surface and air samples in areas where covid-19-positive patients were isolated.
The University of Nebraska Medical Center conducted research in collaboration with the National Institute for Strategic Research. While initially using Covid-19 to isolate 13 individuals at the University of Nebraska Medical Center, researchers collected air and surface samples to study virus shedding from the isolated individuals. It was.
The researchers found that all samples detect viral contamination and support the use of aerial isolation precautions in caring for covid-19 patients.
This study found that as pandemics progressed, the continuing lack of evidence on the SARS-CoV-2 transmission pathway shifted infection prevention and control guidelines between classically defined airborne and droplet prevention. I emphasize that.
Patients in need of inpatient care were managed by the Nebraska Biocontainment Unit (NBU), and both mild cases were quarantined by the National Quarantine Unit (NQU) on the medical center campus.
During the study, personal belongings sampled included mobile phones, exercise equipment, television remote controls, and medical devices. The surface of the room tested included a ventilation grid, table top, and window shelves. A toilet bowl sample was taken from the rim of the bowl. Air samples were collected both in the isolation room and in the NBU and NQU corridors during the sampling procedure while the patient was present.
For Nebraska Biocontainment Unit rooms, samples were taken at the windows, bed rails, or bedside tables, under the patient’s bed, and at the return grate of the air conditioner closest to the door.
During the study, surface and aerosol samples were analyzed by RT-PCR targeting the SARS-CoV-2 E gene. Of the 163 samples collected in this study, 121 (72.4%) tested positive for SARS-CoV-2 PCR, according to the findings.
“We found that 63.2% of indoor air samples were positive for RT-PCR. 58.3% of samples taken outside the room in the hallway were positive,” the researchers said in a study.
According to the study, 77.8% of mobile phone samples were positive for SARS-CoV-2 and 55.6% of in-room TV remote controls were positive. Also, 81% of the samples collected from the isolation room toilets were positive. In addition, 70.8% of bedside tables and bedrails showed the presence of viral RNA. The study said that 75% of all sampled room surfaces were positive for SARS-CoV-2 RNA.
This study suggests that patients with high levels of disease sharpness and care may be associated with increased levels of environmental pollution.
“The data suggest that aerosol particles of the virus are produced by individuals with covid-19 disease, even in the absence of cough,” the study said.
“Our study suggests that there is widespread SARS-CoV-2 environmental contamination around covid-19 patients, and hospital IPC procedures suggest that subspecies (objects that could cause infections or Substance), and viruses that can be transmitted in the air.”
The study found that despite widespread environmental pollution and limited SARS-CoV-2 aerosol contamination associated with hospitalized and mildly ill individuals, the implementation of a standard suite of infection control and control procedures led to covid- Prevented 19 documented cases. Self-monitoring was performed for 14 days after the last contact with the ward and two nasal swab PCR assays were performed at 24-hour intervals if symptoms of fever or respiratory infection were reported.
Further research is needed to fully quantify the risk, he added.
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