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Summary of recent studies on COVID-19


Children wearing protective masks toss snow at each other as they skate at Bryant Park during the coronavirus disease (COVID-19) pandemic in the Manhattan borough of New York City, New York, U.S., January 14, 2022.— Reuters
Children carrying protecting masks toss snow at one another as they skate at Bryant Park throughout the coronavirus illness (COVID-19) pandemic within the Manhattan borough of New York City, New York, U.S., January 14, 2022.— Reuters
  • Children’s noses defend much less properly in opposition to Omicron.
  • Smell issues might predict reminiscence issues after COVID-19.
  • Vaccine mandates linked to higher nursing-home staffing.

The following is a abstract of some recent studies on COVID-19. They embody analysis that warrants additional research to corroborate the findings and that has but to be licensed by peer evaluate.

Children’s noses defend much less properly in opposition to Omicron

The Omicron variant could also be extra environment friendly at infecting youngsters by the nostril than earlier variations of the coronavirus, a small research suggests.

Earlier within the pandemic, youngsters’s noses had been much less welcoming to the virus that causes COVID-19 than adults’ noses. 

Studies of the unique SARS-CoV-2 and a few of its variants discovered the virus was met with stronger immune responses within the cells lining younger noses than in adults’ nasal-lining cells, and it was much less environment friendly at making copies of itself in youngsters’s noses. But recent test-tube experiments mixing the virus with nasal cells from 23 wholesome youngsters and 15 wholesome adults discovered the antiviral defences in youngsters’ noses “was markedly less pronounced in the case of Omicron,” researchers reported on Monday in PLOS Biology. 

They additionally report that Omicron reproduced itself extra effectively in youngsters’s nasal-lining cells in comparison with each Delta and the unique virus.

“These data are consistent with the increased number of pediatric infections observed during the Omicron wave,” the researchers wrote whereas calling for extra studies.

Smell issues might predict reminiscence issues after COVID-19

The severity of odor dysfunction after an infection with the coronavirus could also be a greater predictor of long-term cognitive impairment than the general severity of COVID-19, in line with an Argentinian research.

Researchers studied a random pattern of 766 individuals over age 60, roughly 90% of whom had been contaminated with the virus. Physical, cognitive and neuropsychiatric checks carried out three-to-six months after an infection confirmed a point of reminiscence impairment in two-thirds of the contaminated contributors. 

After taking people’ different danger components into consideration, severity of loss of odor, referred to as anosmia, “but not clinical status, significantly (predicted) cognitive impairment,” the researchers reported on Sunday on the Alzheimer’s Association International Conference 2022, held on-line and in San Diego.

“The more insight we have into what causes or at least predicts who will experience the significant long-term cognitive impact of COVID-19 infection, the better we can track it and begin to develop methods to prevent it,” research chief Gabriela Gonzalez-Aleman of Pontificia Universidad Catolica Argentina in Buenos Aires stated in an announcement.

Vaccine mandates linked to higher nursing-home staffing

In US states that mandated COVID-19 vaccines for nursing house workers, the foundations achieved the specified impact and didn’t result in mass resignations and or staffing shortages, a research discovered.

In states with out such mandates, nonetheless, nursing houses did expertise workers shortages throughout the research interval, researchers reported on Friday in JAMA Health Forum. Data collected from mid-June to mid-November 2021 from the National Healthcare Safety Network confirmed that in 12 states with COVID-19 vaccine mandates, workers vaccination protection charges ranged from 78.7% to 95.2%. 

States with out mandates “had consistently lower staff vaccination coverage throughout the study window” and “higher rates of reported staff shortages throughout the study period,” in line with the report.

“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 stated. They added that the information “suggests that the fear of massive staffing shortfalls owing to vaccine mandates may be unfounded.”

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