CDC: Teachers can play a key role in spreading the coronavirus in schools – Human – Science and technology

, 23.02.2021 12:26

Illustration photo.

Teachers may play a greater role in the spread of COVID-19 in schools than young students, according to a small study by the US Centers for Disease Control and Prevention (CDC).

The study examined the spread of coronavirus in eight primary schools in Mariette, a suburb of Atlanta, from December 1, 2020 to January 22, 2021. It was attended by 2,600 students and 700 employees.

Researchers at the time identified nine groups of COVID-19 cases, including 32 students and 13 teachers from six of these schools. There must have been at least three related cases of COVID-19 within the group.

In four groups, the teacher was the first case, the student was only in one of the groups. In the other four groups, it was not known who the primary disseminator was. It is likely that in eight of the nine groups, the infection was transmitted from teacher to student.

In the two largest groups, the teacher infected the SARS-CoV-2 coronavirus with another teacher – probably at face-to-face meetings or during lunch breaks. The infected teachers then spread the disease to more students.

“Primary infections among teachers played a key role in the transmission of SARS-CoV-2 in schools and the downstream chains of infection – emphasizing the importance of preventing infections, especially among teachers,” said a study published on February 22 in the journal Morbidity and Mortality Weekly Report, which belongs to the CDC.

The results of the CDC research emerged a week after the office issued detailed guidelines on how to safely reopen schools in the United States. Findings are also consistent with previous studies from Europe. For example, research from the UK has shown that coronavirus spread from teacher to teacher is more common in schools than from student to student. According to a study from Germany, the transmission of COVID-19 in schools occurred three times more often when the initial case was a teacher and not a student.

Measures to prevent the spread of the disease among teachers, including steps to minimize personal contact between adults in schools, are likely to reduce the spread of coronavirus in schools.

The authors of the study further note that the school area in the state of Georgia, to which the surveyed schools belong, has already introduced changes regarding the restriction of personal contacts between teachers. Teacher vaccination can also help prevent the spread of COVID-19 in schools, although the authors state that teacher vaccination is not a condition for reopening schools.

Research also shows that most cases of COVID-19 transmission occurred in “not ideal physical spacing”, meaning that students and teachers were in close contact or that students did not wear the veil properly. That’s why it’s so important to use a veil properly and keep a physical distance wherever possible in schools. Physical breakdowns are especially important during lunch breaks when the veil is not worn, according to the study’s authors, according to the Live Science server.


Source: Pravda.sk – Veda a technika by vat.pravda.sk.

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