Morbidity and Mortality Weekly Report (MMWR)

This report describes emergency department visits for bicycle-related traumatic brain injuries during 2009-2018.

Data from six models indicate that with high vaccination coverage and moderate nonpharmaceutical intervention (NPI) adherence, hospitalizations and deaths will likely remain low nationally, with a sharp decline in cases projected by July 2021. Lower NPI adherence could lead to substantial increases in severe COVID-19 outcomes, even with improved vaccination coverage

The NYC Department of Health and Mental Hygiene analyzed laboratory and epidemiologic data to characterize cases of B.1.526 infection and the associated potential for breakthrough infection and reinfection. Preliminary evidence suggests that, to date, B.1.526 does not lead to more severe disease or increased risk for infection after vaccination.

On January 24, the Colorado Department of Public Health and Environment (CDPHE) identified the first Colorado case of COVID-19 attributed to the B.1.427 and B.1.429 variants. To improve convenience sampling to identify and track emerging variants, CDPHE established a 30-site statewide sentinel surveillance system.

This report describes the percentage of adults with diabetes by urbanization level and age group in the United States.

This report describes the number of emergency department visits and hospitalizations occurring among older adults from falls and other accidents.

This report describes an outbreak of Escherichia coli in multiple states linked to romaine lettuce.

This report describes an analysis of polio surveillance data from 42 countries during 2019-2020.

Five mass vaccination sites reported 64 anxiety-related events, including 17 events of syncope (fainting) after receipt of Janssen COVID-19 vaccine. The reporting rates of syncope to VAERS after Janssen COVID-19 and influenza vaccines (2019-20) were 8.2 and 0.05 per 100,000 doses, respectively.

Nearly 8 million doses of the Janssen COVID-19 vaccine had been administered. Review of safety monitoring data found that 97% of reported reactions after vaccine receipt were nonserious, consistent with preauthorization clinical trials data. A total of 17 thrombotic events with thrombocytopenia were detected, including three non-CVST events.

In U.S. hospitals during January-March 2021, receipt of Pfizer-BioNTech or Moderna COVID-19 vaccines was 94% effective against COVID-19 hospitalization among fully vaccinated adults and 64% effective among partially vaccinated adults aged ≥65 years.

This report describes healthcare use among adolescents with autism.

This report describes emergency department visits attributed to tick bites.

This report describes a COVID-19 outbreak among farmworkers in Okanogan County.

This report describes a review of COVID-19 cases in the seafood processing industry in Alaska.

This report describes the percentage of adults with arthritis by age group and sex in the United States.

This report describes an investigation in Maryland of two linked clusters of COVID-19 cases identified as the B.1.351 variant.

Erratum: Vol. 70, No. 12

The Advisory Committee on Immunization Practices concluded that the benefits of resuming Janssen COVID-19 vaccination among persons aged ≥18 years outweighed the risks and reaffirmed its interim recommendation under FDA's Emergency Use Authorization, which includes a new warning for rare clotting events among women aged 18-49 years.

Among 3,171 nonhospitalized adult COVID-19 patients, 69% had one or more outpatient visits 28-180 days after the diagnosis. Two thirds had a visit for a new primary diagnosis, and approximately one third had a new specialist visit. Symptoms potentially related to COVID-19 were common new visit diagnoses. Visits for these symptoms decreased after 60 days but for some patients continued through 120-180 days.

Twenty-two possible breakthrough SARS-CoV-2 infections occurred among fully vaccinated persons ≥14 days after their second dose of COVID-19 vaccine. Two thirds of persons were asymptomatic. A minority of persons with breakthrough infection experienced mild to moderate COVID-19-like symptoms; two COVID-19-related hospitalizations and one death occurred. No facility-associated secondary transmission was identified.

In a COVID-19 outbreak at a Kentucky skilled nursing facility involving a newly introduced variant to the region, unvaccinated residents and health care personnel (HCP) had 3.0 and 4.1 times the risk of infection as did vaccinated residents and HCP. Vaccine was 86.5% protective against symptomatic illness among residents and 87.1% protective among HCP.

This report describes age-adjusted death rates for Alzheimer Disease among adults ≥65 Years by sex.

This report describes an outbreak of Shiga toxin-producing E. Coli linked to contaminated flour in the United States.

This report describes COVID-19 outbreaks among incarcerated persons in Idaho correctional facilities.

This report describes passenger arrival testing for SARS-CoV-2 in Alaska airports.

This report describes workers' compensation claims for work-related musculoskeletal disorders among construction workers in the United States.

Based on laboratory scenarios, COVID-19 exposures were reduced by 23% to 57% in single-aisle and twin-aisle aircraft when the middle seat was kept vacant, compared with full aircraft occupancy.

This report describes changes in the number of emergency department visits during December 2020-January 2021 compared with the same months the year before.

This report describes immunization safety monitoring using surveillance for adverse events following immunization.

This report describes state-level costs of opioid use disorder and fatal opioid overdose in the United States for 2017.

Erratum: Vol. 70, No. 13

MMWR erratum volume 70, number 13

This report provides an update on excess deaths in the United States associated with the COVID-19 pandemic.

Within each U.S. Census region, the proportion of hospitalized patients with COVID-19 was highest for Hispanic or Latino patients. Racial and ethnic disparities were largest during May-July 2020 and became less pronounced as the pandemic spread throughout the country; however, disparities remained in December 2020 in all regions.

Investigators analyzed data on in-school COVID-19 testing among 594 students who were exposed to 33 index patients at 13 elementary schools. Compared with non-Hispanic White students, participation in the program was higher among students identifying as Hispanic/Latino White or members of another racial minority group.

Based on laboratory scenarios, COVID-19 exposures were reduced by 23% to 57% in single-aisle and twin-aisle aircraft when the middle seat was kept vacant, compared with full aircraft occupancy.

Within each U.S. Census region, the proportion of hospitalized patients with COVID-19 was highest for Hispanic or Latino patients. Racial and ethnic disparities were largest during May-July 2020 and became less pronounced as the pandemic spread throughout the country; however, disparities remained in December 2020 in all regions.

Data from 13 states indicate that compared with White persons, Hispanic and American Indian or Alaska Native persons experienced 1.7 times the rate, and Black persons experienced 1.4 times the rate of emergency department care visits for COVID-19 during October-December 2020.

This report describes COVID-19 incidence and mortality rates among American Indian/Alaska Native and White persons in Montana.

This report describes use of stay-at-home orders and mask mandates by the Blackfeet Tribal Reservation as a mitigation effort to reduce COVID-19.

This report describes the age-adjusted percentage of adults who received an influenza vaccination in the U.S. in 2019.

This report describes COVID-19 testing protocols at colleges and universities in relation to class instruction type.

This report describes COVID-19 contact tracing and case investigation efforts on the Spirit Lake reservation in South Dakota.

Forty-six cases of COVID-19 were linked to an indoor bar opening event that occurred during February 2021 in a rural Illinois county. Event patrons were linked to secondary cases among household, long-term care facility, and school contacts.

Among 378,048 death certificates from 2020 listing COVID-19 as a cause of death, 5.5% listed COVID-19 without codes for any other conditions. Among 357,133 death certificates with at least one other diagnosis, 97% had a co-occurring diagnosis of a plausible chain-of-event condition, a significant contributing condition, or both.

The age-adjusted death rate increased by 15.9% in 2020. Overall death rates were highest among Black and American Indian or Alaska Native people. COVID-19 was the third leading cause of death, and the COVID-19 death rate was highest among Hispanics.

This report describes an outbreak of COVID-19 in a correctional facility after incarcerated persons were exposed by a visiting dental health care provider.

This report describes the willingness among incarcerated persons to receive a COVID-19 vaccination.

This report describes an outbreak of COVID-19 in a correctional facility after exposure from newly transferred incarcerated persons.