During the second wave of the pandemic

Thus, it was unavoidable at some point that attending personnel and visitors would introduce influenza virus in both groups. During the second wave of the pandemic, the control group and the personnel sustained a robust outbreak of respiratory illness, shown retrospectively by serology to be due to the pandemic strain influenza A (H2N2), whereas the group in the irradiated building remained symptom free. The seroconversion rate to influenza A (H2N2) was 19% in the control group n95 mask, 18% in personnel, but only 2% in the study group (27,28).Whereas UV irradiation is highly effective in inactivating viruses in small particle aerosols, it is ineffective for surface decontamination because of poor surface penetrations.

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surgical mask Two Massachusetts public schools have issued warnings urging students or staff to stay home if they’ve recently traveled abroad, citing concerns about the coronavirus.Bellingham Public Schools in Norfolk County issued a statement noting that some students and staff members traveled to parts of the world where COVID 19 was present. The district asked students and staff members to stay home from school next week.»There is no need for concern at this time as this is a precautionary measure,» the district said.The district is disinfecting classrooms at night and monitoring the situation, according to the statement.Weymouth Public Schools Superintendent Jennifer Curtis Whipple confirmed Friday that a school employee reported having a fever on Thursday. The employee, who was not identified, had returned from a trip abroad a week ago.Curtis Whipple did not say where the employee traveled, but said the country did not have any travel restrictions as of Friday.The district notified the state Department of Public Health and the local health department, but no one is suspected of having the coronavirus, Curtis Whipple said.The district has been notified by health officials that there is no one in the school community suspected of having Coronavirus.More than 83,000 confirmed cases of the virus have been reported worldwide, according to the World Health Organization surgical mask.