Notes from the Field: Multistate Outbreak of Escherichia coli O157:H7 Infections Linked to a National Fast-Food Chain - United States, 2022

Published on June 28, 2023

This report describes a large multistate outbreak of Escherichia coli infection linked to a national fast-food chain.

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Disparities in COVID-19 Disease Incidence by Income and Vaccination Coverage - 81 Communities, Los Angeles, California, July 2020-September 2021

June 28, 2023
This report describes higher COVID-19 incidence in lower-income communities in Los Angeles, California, during two surges that occurred before vaccine availability.

Expression of Concern: Timing of Introduction of Complementary Foods - United States, 2016-2018

June 29, 2023
Expression of Concern on a previously published MMWR titled, "Timing of Introduction of Complementary Foods - United States, 2016-2018."