So far, investigators haven't identified a single source of the flour.
One person got sick during pregnancy, resulting in pregnancy loss.
The outbreak has sickened at least 63 people in 8 states, and 10 patients required hospital care.
At least 11 people have been sickened and 10 hospitalized in the multistate outbreak going back several years.
A Salmonella Typhimurium outbreak linked to alfalfa sprouts from Nebraska-based SunSprout Enterprises has so far sickened 15 people.
Listeria monocytogenes has hospitalized 2 people in 2 states.
A study of more than 3 million patients with bacterial and viral respiratory infections found that inappropriate antibiotic prescriptions were associated with increased risk of adverse events and higher healthcare costs, researchers reported today in Clinical Infectious Diseases.
The strategy focuses on levels of Salmonella and highly virulent strains rather than just its presence or absence.
A US study of almost 17,000 patients finds modest two-dose Pfizer COVID vaccine effectiveness (VE) against hospitalization and emergency department (ED) admission for Omicron BA.1 (the original Omicron variant) and the BA.2 subvariant, but three-dose VE was 79% and 71% for hospitalization, respectively, and 72% and 21% for ED visits.
In its latest weekly update on the pandemic, the World Health Organization (WHO) said today that global COVID-19 cases declined 6% last week compared to the previous week, though the pace of activity increased in the European region, which experienced an 8% rise compared to the week before.