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In other global developments, lockdown measures were added for cities in India and China, as Australia's cases and hospitalizations reached new record levels.
The president also promised to ease testing shortages, as kids' illnesses and hospitalizations add to surging case numbers.
Another study found the breast milk of vaccinated mothers may protect infants for 6 months.
Nonhospitalized patients who recovered from asymptomatic to mild COVID-19 can experience small but measurable drops in dynamic lung volume, Danish researchers reported yesterday in the Journal of Infectious Diseases. They note that lower lung function, even within the normal ranges, is a risk factor for higher respiratory morbidity and mortality.
In other COVID developments, federal officials cleared two more rapid tests for emergency use as the weekly case average soared higher.
The adverse effects findings were similar to what preauthorization trials found for younger kids, and the real-world study in adolescents found substantial protection.
In other developments, countries affected earlier by Omicron reported more record cases, as Israel announced fourth doses for higher risk groups.
Late last week the US Centers for Disease Control and Prevention (CDC) posted an outbreak notice about an Escherichia coli O157:H7 outbreak related to mixed leafy greens.
US flu markers rose again last week, though reporting may be impacted by holiday-related delays, the US Centers for Disease Control and Prevention (CDC) said today in its weekly update, which covers the week ending Dec 25.
Our weekly wrap-up of antimicrobial stewardship & antimicrobial resistance scans
Originally published by CIDRAP News Dec 29
As officials brace for more post-holiday spread, studies yield promise for boosters and immune system response.
Researchers warn the findings could complicate future COVID-19 mitigation and control plans.
The incubation period for the Omicron variant may be shorter than for Delta and the original SARS-CoV-2 virus, Nebraska researchers reported yesterday, based on an analysis of the first known Omicron cluster in the United States. The team reported its findings yesterday in an early online edition of Morbidity and Mortality Weekly Report (MMWR).
The new guidance comes at a turbulent time with surging case numbers, unmet testing demand, and uncertainties about Omicron.
The pandemic also widened pre-existing racial and ethnic disparities in non-COVID hospitalizations among Medicare patients.
Full vaccination against COVID-19 was associated with reduced risk of breakthrough infection, but risk of breakthrough infection was much higher among fully vaccinated people with immune dysfunction than those without, US researchers reported today in JAMA Internal Medicine.
Surges in Europe drove record highs in France and Italy, with Australia also reporting record daily cases.
Some states report massive case increases, leading to work disruptions, flight cancellations, and overrun testing capacity.
A retrospective study of a large cohort of US pregnancies during the COVID-19 pandemic found that infection with SARS-CoV-2 was associated with increased risks for poor pregnancy outcomes, an international team of researchers reported today in the Journal of Infectious Diseases.
United States flu activity jumped again the week ending Dec 18, with eight states reporting high or very high activity and the first two pediatric flu deaths reported for the season, the US Centers for Disease Control and Prevention (CDC) said today in its regular update.
