After finishing distance education and entering schools, the risk of teachers being hospitalized with covid doubled. Scotland It reopened for the fall last year, according to a new study.
Researchers also found that teachers working in secondary schools were more likely to be hospitalized with the virus than those working in primary or nursery school settings.
However, they caution that teachers were generally at lower risk of severe covidia during epidemics as a whole, including when schools were open, resulting in more intensive care than the general population.
Between March 2020 and the end of June 2021, their total hospital admissions were similar to the average of working-age adults, less than one percent.
The study’s authors, published today in the British Medical Journal (BMJ), said their findings “should reassure most adults engaged in personal education”.
Research by public scientists. Health. The Universities of Scotland and Glasgow, Edinburgh, Strathclyde and Glasgow Caledonia analyzed data on coed infection, hospital admissions and ICU admissions among registered teachers, healthcare workers and the general population.
In total, they counted 128 hospital admissions, including 128 ICU admissions for teachers during the 16 months of the study.
Broken by the type of school, there were 48 hospitalized teachers in primary schools with or without nursery on site, 58 in secondary school teachers, and 22 in teachers working in ‘other’ schools.
In terms of population, the average age of teachers was 42, 80% were women, and 84% had no joint disease.
However, after adjusting the data according to factors such as age, gender, race, deprivation and pre-existing illness, teachers were found to be 50% less likely to be hospitalized with coyotes when schools were closed. Compared to the general population of adults aged 21 to 65 in the spring and summer of 2020.
In contrast, the number of healthcare workers facing patients was about four times higher than the general population being hospitalized with covid during this period.
When schools returned for the autumn period in August 2020, there was no change in the size of classes before the epidemic, and physical distance between staff and students was recommended in secondary schools but not in primary schools. I didn’t need it.
First primary school students were not required to wear face masks and secondary students were expected to wear only in communal, non-classroom areas such as corridors or canteens.
Since November, mask mandates for secondary classrooms have been implemented in areas with high case rates in all secondary schools, even from March this year as long as students are sitting at their desks.
When researchers compared the risk of teachers being hospitalized during the fall period compared to the spring / summer of 2020, when schools were closed, they found that it was 2.4 times higher.
He added that the increase indicates that the threat to teachers during the fall of 2020 was similar to that of the general population.
Overall, they found that secondary school teachers were about 35% more likely to be hospitalized with covid during this time than other working-age adults, while primary school teachers were either identical. Or were at lower risk, although the researchers noted that the margin of error was “wide” due to the low number of hospital admissions for these estimates.
By the time schools reopened fully for the summer period in 2021, when the Delta variety was spread but vaccine launches were at an advanced stage. StageOverall, teachers had a 15% lower risk of being hospitalized with covid. However, they were 1.7 times more likely to be hospitalized during this period, when schools were closed at the onset of the epidemic.
No increased risk of severe colic was found in any period.
The researchers noted that similar research in Sweden found that secondary teachers who teach in private are twice as likely to be positively tested, hospitalized or die of covidia, but added that ” There may be evidence of a safety effect of working at home. More than the harmful effects of working in a school setting. ”
He added: “These findings are consistent with our own observations that the hospitalization rate for teachers with Covid 19 is close to 1 when schools are open but close to 0.5 when schools are closed. ”
The researchers said there were several “understandable” explanations for the low hospital enrollment of teachers compared to the normal working age population when schools were closed.
They conclude: “First, teachers learned about the potential exposure to SARS-CoV-2 (e.g., more strict observation of social distance laws, more attention to ventilation) than other adults. Be more careful, thus reducing their risk of infection.
“Secondly, teachers may differ from other groups in knowing the risk of incompletely known diseases or non-standard lifestyle risk factors (such as smoking, diet and physical exercise) for Covid 19. Goes
“Third, teachers may have a more effective immune response after being exposed to SARS-CoV-2 because of the presence of cross-reactive T cells 21 from previous occupational exposure to the virus.
“Finally, during periods when schools are closed, teachers may have fewer contacts than other adults of working age, and even where they have basic health, teachers have a lower risk of covid 19. Are
“Some support for this last suggestion comes from the finding that working from home alone is associated with a lower risk of covid 19, and we think this is the most plausible explanation for the low risk among teachers during this time. Schools were closed.
“This latter explanation is also consistent with the observation that when teachers returned to teach in person, there was an increased risk of being hospitalized with covid 19.”