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The intervention has the potential to save more than 2,800 days of unnecessary antibiotic therapy a year, the study authors noted.
Officials also reported another death in a confirmed patient, raising the total to 10.
So far, investigators haven't identified a single source of the flour.
One person got sick during pregnancy, resulting in pregnancy loss.
Though illness levels are declining in much of the world, they are on the rise in some countries including India and a handful of Middle East countries.
All of the cases involved vaccine-derived polio strains.
The authors said a range of factors--biological, psychological, or social--might trigger and maintain long COVID symptoms.
Investigators are working to determine the Chilean man's H5N1 exposure, and in Senegal, H5N1 has now infected a poultry flock.
In other mpox developments today, the WHO in an update said cases continue to decline, though Japan reported some localized spread.
Officials haven't said how the man was exposed to the virus, which had recently appeared in Chile's wild birds, poultry, and even some sea mammals.
The variants predate the use of the drugs, appeared independently in multiple world regions, and are capable of spreading.
Along with the four new cases, two more deaths were reported in the outbreak that spans a more than 100-mile area, including two cities.
The plan calls for federal guidance on infection prevention and control and antimicrobial stewardship and that both be woven into future pandemic preparedness plans.
Babies born to moms who had COVID had lower BMIs at first, but weight rose steeply through infancy, a possible harbinger of problems in later life.
India's cases are at the highest level in 6 months, as the US experiences a politically charged unwinding of its COVID health emergencies.
Nearly two-thirds of patients hospitalized with flu, RSV, or COVID-19 received antibiotics, but they had a higher risk of death than those who didn't.
Though COVID deaths drove part of the widening gap, other factors such as unintentional injuries involving opioids and alcohol also played a role.
Previously, the drug had only been used for treating adults with complicated infections in hospital settings.
The countries with highest incidences include Bolivia, Nicaragua, Belize, and Brazil.
The new analysis includes death records and out-of-hospital heart attacks, finding a more robust connection than an earlier study.
