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Morbidity and Mortality Weekly Report (MMWR)

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The Morbidity and Mortality Weekly Report (MMWR) series are CDC’s primary vehicle for scientific publication of timely, reliable, authoritative, accurate, objective, and useful public health information and recommendations. The MMWR series includes the following publications: MMWR Weekly, MMWR Recommendations and Reports, CDC Surveillance Summaries and MMWR Supplements. These journals are freely available to the public as Diamond Open Access. For more on MMWR, visit https://www.cdc.gov/mmwr/index.html.

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Showing 1661 - 1680 of 9551 results
  • K12 Schools Can Have Inperson Learning with Limited Inschool COVID19 Spread
    K-12 Schools Can Have In-person Learning with Limited In-school COVID-19 Spread
    Centers for Disease Control and Prevention (U.S.)
    January 26, 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    Illustration accompanying: Falk A, Benda A, Falk P, Steffen S, Wallace Z, Høeg TB. COVID-19 Cases and Transmission in 17 K–12 Schools — Wood County, Wisconsin, August 31–November 29, 2020. MMWR Morb Mortal Wkly Rep. ePub: 26 January 2021mm7004e3_MaskingGradesK-12Wisconsin_IMAGE_26Jan21_1200x675-medium.jpg
    Public Domain
  • COVID19 Cases and Transmission in 17 K12 Schools Wood County Wisconsin August 31November 29 2020
    COVID-19 Cases and Transmission in 17 K–12 Schools — Wood County, Wisconsin, August 31–November 29, 2020
    Falk, Amy ;
    Benda, Alison
    January 26, 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    What is already known about this topic? COVID-19 outbreaks related to kindergarten through grade 12 (K–12) classroom settings have been rarely reported; however, in-school Transmission risk has not been well described.What is added by this report? Among 17 rural Wisconsin schools, reported student mask-wearing was high, and the COVID-19 incidence a ...
    Supporting Files Public Domain
  • Implementation and Evolution of Mitigation Measures Testing and Contact Tracing in the National Football League August 9November 21 2020
    Implementation and Evolution of Mitigation Measures, Testing, and Contact Tracing in the National Football League, August 9–November 21, 2020
    Mack, Christina D. ;
    Wasserman, Erin B.
    January 25, 2021  | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    What is already known about this topic? COVID-19 contact tracing is important to prevent Transmission, but risk characterization is difficult.What is added by this report? The National Football League observed SARS-CoV-2 Transmission after <15 minutes of cumulative interaction, leading to a revised definition of a high-risk contact that evaluated mask use and ventilation in addition to duration and proximity of interaction. Intensive mitigation protocols effectively reduced close interactions.What are the implications for public health practice? Assessment of the context of each interaction, including mask use, indoor versus outdoor setting, and ventilation, in addition to duration and proximity, can improve identification of high-risk contacts during contact tracing. Postexposure quarantine based on redefined high-risk criteria, combined with tTesting and environment-specific intensive protocols, can protect communities before and after case identification.The National Football League (NFL) and the NFL Players Association (NFLPA) began the 2020 football season in July, implementing extensive mitigation and Surveillance measures in facilities and during travel and gameplay. Mitigation protocols* were evaluated and modified based on data from routine reverse transcription–polymerase chain reaction (RT-PCR) tests for SARS-CoV-2, the Virus that causes coronaVirus 2019 (COVID-19); proximity tracking devices; and detailed interviews. Midseason, Transmission was observed in persons who had cumulative interactions of <15 minutes’ duration, leading to a revised definition of high-risk contacts that required consideration of mask use, setting and room ventilation in addition to proximity and duration of interaction. The NFL also developed an intensive protocol that imposed stricter infection Prevention precautions when a case was identified at an NFL club. The intensive protocol effectively prevented the occurrence of high-risk interactions, with no high-risk contacts identified for 71% of traced cases at clubs under the intensive protocol. The incorporation of the nature and location of the interaction, including mask use, indoor versus outdoor setting, and ventilation, in addition to proximity and duration, likely improved identification of exposed persons at higher risk for SARS-CoV-2 infection. Quarantine of these persons, along with tTesting and intensive protocols, can reduce spread of infection.Suggested citation for this article: Mack CD, Wasserman EB, Perrine CG, et al. Implementation and Evolution of Mitigation Measures, Testing, and Contact Tracing in the National Football League, August 9–November 21, 2020. MMWR Morb Mortal Wkly Rep. ePub: 25 January 2021.mm7004e2.htm?s_cid=mm7004e2_wmm7004e2-H.pdf
    Supporting Files Public Domain
  • During the 2020 NFL Season Safety Protocols Helped Limit Spread of COVID19 Helped Limit Spread of COVID19
    During the 2020 NFL Season, Safety Protocols Helped Limit Spread of COVID-19 Helped Limit Spread of COVID-19
    Centers for Disease Control and Prevention (U.S.)
    January 25, 2021  | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    Illustration accompanying: Mack CD, Wasserman EB, Perrine CG, et al. Implementation and Evolution of Mitigation Measures, Testing, and Contact Tracing in the National Football League, August 9–November 21, 2020. MMWR Morb Mortal Wkly Rep. ePub: 25 January 2021.mm7004e2_MitigationMeasuresNFL_IMAGE_25Jan21_1200x675-medium.jpg
    Public Domain
  • Vaccination Coverage with Selected Vaccines and Exemption Rates Among Children in Kindergarten United States 201920 School Year
    Vaccination Coverage with Selected Vaccines and Exemption Rates Among Children in Kindergarten — United States, 2019–20 School Year
    Seither, Ranee ;
    McGill, Michael T.
    January 22 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    State and local school vaccination requirements serve to protect students against vaccine-preventable Diseases (1). This report summarizes data collected by state and local immunization programs* on vaccination coverage among children in kindergarten (kindergartners) in 48 states, exemptions for kindergartners in 49 states, and provisional enrollme ...
    Supporting Files Public Domain
  • Percentage of Adolescents Meeting Federal Fruit and Vegetable Intake Recommendations Youth Risk Behavior Surveillance System United States 2017
    Percentage of Adolescents Meeting Federal Fruit and Vegetable Intake Recommendations — Youth Risk Behavior Surveillance System, United States, 2017
    Lange, Samantha J. ;
    Moore, Latetia V.
    January 22 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    According to the 2020-2025 Dietary Guidelines for Americans, persons should consume fruits and vegetables as part of a healthy eating pattern to reduce their risk for diet-related chronic Diseases, such as cardiovascular disease, type 2 diabetes, some cancers, and obesity.* A healthy diet is important for healthy growth in adolescence, especially b ...
    Supporting Files Public Domain
  • COVID19 Case Investigation and Contact Tracing Efforts from Health Departments United States June 25July 24 2020
    COVID-19 Case Investigation and Contact Tracing Efforts from Health Departments — United States, June 25–July 24, 2020
    Spencer, Kimberly D. ;
    Chung, Christina L.
    January 22 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    Case investigation and contact tracing are core public health tools used to interrupt Transmission of pathogens, including SARS-CoV-2, the Virus that causes coronaVirus disease 2019 (COVID-19); timeliness is critical to effectiveness (1,2). In May 2020, CDC funded* 64 state, local, and territorial health departments| to support COVID-19 response ac ...
    Supporting Files Public Domain
  • COVID19 Trends Among Persons Aged 024 Years United States March 1December 12 2020
    COVID-19 Trends Among Persons Aged 0–24 Years — United States, March 1–December 12, 2020
    Leidman, Eva ;
    Duca, Lindsey M.
    January 22 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    CoronaVirus disease 2019 (COVID-19) case and electronic laboratory data reported to CDC were analyzed to describe demographic characteristics, underlying health conditions, and clinical outcomes, as well as Trends in laboratory-confirmed COVID-19 incidence and tTesting volume among U.S. children, adolescents, and young adults (persons aged 0-24 yea ...
    Supporting Files Public Domain
  • Evaluation of Abbott BinaxNOW Rapid Antigen Test for SARSCoV2 Infection at Two CommunityBased Testing Sites Pima County Arizona November 317 2020
    Evaluation of Abbott BinaxNOW Rapid Antigen Test for SARS-CoV-2 Infection at Two Community-Based Testing Sites — Pima County, Arizona, November 3–17, 2020
    Prince-Guerra, Jessica L. ;
    Almendares, Olivia
    January 22 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    Rapid antigen tests, such as the Abbott BinaxNOW COVID-19 Ag Card (BinaxNOW), offer results more rapidly (approximately 15-30 minutes) and at a lower cost than do highly sensitive nucleic acid amplification tests (NAATs) (1). Rapid antigen tests have received Food and Drug Administration (FDA) Emergency Use Authorization (EUA) for use in symptomati ...
    Supporting Files Public Domain
  • December 29 2020January 12 2021
    December 29, 2020–January 12, 2021
    Galloway, Summer E. ;
    Paul, Prabasaj
    January 22 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    On December 14, 2020, the United Kingdom reported a SARS-CoV-2 Variants of concern (VOC), lineage B.1.1.7, also referred to as VOC 202012/01 or 20I/501Y.V1.* The B.1.1.7 Variants is estimated to have emerged in September 2020 and has quickly become the dominant circulating SARS-CoV-2 Variants in England (1). B.1.1.7 has been detected in over 30 cou ...
    Supporting Files Public Domain
  • MMWR Morbidity and Mortality Weekly Report Vol 70 No 03 January 22 2021
    MMWR. Morbidity and Mortality Weekly Report, Vol. 70, No. 03, January 22, 2021
    Centers for Disease Control and Prevention (U.S.)
    01/22/2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    Percentage of Adolescents Meeting Federal Fruit and Vegetable Intake Recommendations — Youth Risk Behavior Surveillance System, United States, 2017 / Samantha J. Lange; Latetia V. Moore; Diane M. Harris; Caitlin L. Merlo et al. — Vaccination Coverage with Selected Vaccines and Exemption Rates Among Children in Kindergarten — United States, 2019–20 ...
    Public Domain
  • Allergic Reactions Including Anaphylaxis After Receipt of the First Dose of Moderna Covid19 Vaccine United States December 21 2020January 10 2021
    Allergic Reactions Including Anaphylaxis After Receipt of the First Dose of Moderna Covid-19 Vaccine — United States, December 21, 2020–January 10, 2021
    Prince-Guerra, Jessica L. ;
    Almendares, Olivia
    January 22, 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    What is already known about this topic? Anaphylaxis is a severe, life-threatening allergic reaction that occurs rarely after vaccination.What is added by this report?: During December 21, 2020–January 10, 2021, monitoring by the Vaccine Adverse Event Reporting System detected 10 cases of anaphylaxis after administration of a reported 4,041,396 firs ...
    Supporting Files Public Domain
  • Supplementary Table 1 Estimated Vaccination Coverage for MMR DTaP and Varicella Vaccines Among Children Enrolled in Kindergarten by Vaccine and Immunization Program United States and Territories 20192020 School Year
    Supplementary Table 1. Estimated Vaccination Coverage for MMR, DTaP, and Varicella Vaccines Among Children Enrolled in Kindergarten, by Vaccine and Immunization Program — United States and Territories, 2019–2020 School Year
    Centers for Disease Control and Prevention (U.S.)
    01/22/2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    MMWR Supplementary Table for Volume 70 no. 4
    Public Domain
  • Evaluation of Abbott BinaxNOW Rapid Antigen Test for SARSCoV2 Infection at Two Communitybased Testing Sites Pima County Arizona November 317 2020
    Evaluation of Abbott BinaxNOW Rapid Antigen Test for SARS-CoV-2 Infection at Two Community-based Testing Sites — Pima County, Arizona, November 3–17, 2020
    Prince-Guerra, Jessica L. ;
    Almendares, Olivia
    January 19, 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    What is already known about this topic? The BinaxNOW rapid antigen test received Emergency Use Authorization by the Food and Drug Administration for tTesting specimens from symptomatic persons; performance among asymptomatic persons is not well characterized.What is added by this report? Sensitivity of the BinaxNOW antigen test, compared with polym ...
    Supporting Files Public Domain
  • Candida auris Outbreak in a COVID19 Specialty Care Unit Florida JulyAugust 2020
    Candida auris Outbreak in a COVID-19 Specialty Care Unit — Florida, July–August 2020
    Prestel, Christopher ;
    Anderson, Erica
    January 15 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    In July 2020, the Florida Department of Health was alerted to three Candida auris bloodstream infections and one urinary tract infection in four patients with coronaVirus disease 2019 (COVID-19) who received care in the same dedicated COVID-19 unit of an acute care hospital (hospital A). C. auris is a multidrug-resistant yeast that can cause invasi ...
    Supporting Files Public Domain
  • Assessment of Neonatal Abstinence Syndrome Surveillance Pennsylvania 2019
    Assessment of Neonatal Abstinence Syndrome Surveillance — Pennsylvania, 2019
    Krause, Kathleen H. ;
    Gruber, Joann F.
    January 15 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    The incidence of neonatal abstinence syndrome (NAS), a withdrawal syndrome associated with prenatal opioid or other substance exposure (1), has increased as part of the U.S. opioid crisis (2). No national NAS Surveillance system exists (3), and data about the accuracy of state-based Surveillance are limited (4,5). In February 2018, the Pennsylvania ...
    Supporting Files Public Domain
  • Allergic Reactions Including Anaphylaxis After Receipt of the First Dose of PfizerBioNTech COVID19 Vaccine United States December 1423 2020
    Allergic Reactions Including Anaphylaxis After Receipt of the First Dose of Pfizer-BioNTech COVID-19 Vaccine — United States, December 14–23, 2020
    CDC COVID-19 Response Team  ...
    January 15 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    As of January 3, 2021, a total of 20,346,372 cases of coronaVirus disease 2019 (COVID-19) and 349,246 associated deaths have been reported in the United States Long-term sequalae of COVID-19 over the course of a lifetime currently are unknown; however, persistent symptoms and serious Complications are being reported among COVID-19 survivors, includ ...
    Supporting Files Public Domain
  • Mitigation Policies and COVID19Associated Mortality 37 European Countries January 23June 30 2020
    Mitigation Policies and COVID-19–Associated Mortality — 37 European Countries, January 23–June 30, 2020
    Fuller, James A. ;
    Hakim, Avi
    January 15 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    As cases and deaths from coronaVirus disease 2019 (COVID-19) in Europe rose sharply in late March, most European countries implemented strict mitigation policies, including closure of nonessential businesses and mandatory stay-at-home orders. These policies were largely successful at curbing Transmission of SARS-CoV-2, the Virus that causes COVID-1 ...
    Supporting Files Public Domain
  • Rates of COVID19 Among Residents and Staff Members in Nursing Homes United States May 25November 22 2020
    Rates of COVID-19 Among Residents and Staff Members in Nursing Homes — United States, May 25–November 22, 2020
    Bagchi, Suparna ;
    Mak, Josephine
    January 15 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    During the beginning of the coronaVirus disease 2019 (COVID-19) pandemic, nursing homes were identified as congregate settings at high risk for outbreaks of COVID-19 (1,2). Their residents also are at higher risk than the general population for morbidity and Mortality associated with infection with SARS-CoV-2, the Virus that causes COVID-19, in lig ...
    Supporting Files Public Domain
  • Cancer Screening Test Receipt United States 2018
    Cancer Screening Test Receipt — United States, 2018
    Sabatino, Susan A. ;
    Thompson, Trevor D.
    January 15 2021 | Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
    Screening for breast cancer, cervical cancer, and colorectal cancer (CRC) reduces Mortality from these cancers.* However, screening test receipt has been below national targets with disparities observed in certain populations (1,2). National Health Interview Survey (NHIS) data from 2018 were analyzed to estimate percentages of adults up to date wit ...
    Supporting Files Public Domain
1661 - 1680 / 9551
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