The following is a summary of some recent studies on COVID-19. They include research that warrants further study to corroborate the findings and that has yet to be certified by peer review.
The Omicron variant may be more efficient at infecting children through the nose than previous versions of the coronavirus, a small study suggests.Earlier in the pandemic, children's noses had been less welcoming to the virus that causes COVID-19 than adults' noses.
"These data are consistent with the increased number of pediatric infections observed during the Omicron wave," the researchers wrote, while calling for additional studies.Severity of smell dysfunction after infection with the coronavirus may be a better predictor of long-term cognitive impairment than overall severity of COVID-19, according to an Argentinian study.
Researchers studied a random sample of 766 people over age 60, roughly 90% of whom had been infected with the virus. Physical, cognitive and neuropsychiatric tests performed three-to-six months after infection showed some degree of memory impairment in two-thirds of the infected participants.
In states without such mandates, however, nursing homes did experience staff shortages during the study period, researchers reported on Friday in. Data collected from mid-June to mid-November 2021 from the National Healthcare Safety Network showed that in 12 states with COVID-19 vaccine mandates, staff vaccination coverage rates ranged from 78.7% to 95.2%.
"The association of mandates with higher vaccination coverage stands in contrast with prior efforts to increase COVID-19 vaccine uptake among nursing home staff through education, outreach, and incentives," the researchers said. They added that the data "suggests that the fear of massive staffing shortfalls owing to vaccine mandates may be unfounded."
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