conducted all statistical analysis in collaboration with O.Z. Risk factors for severe COVID-19 in children. Iuliano AD, Brunkard JM, Boehmer TK, et al. In the TND, we estimated that during the Delta predominant period, maternal vaccination with at least doses reduced the infants risk of testing SARS-CoV-2 positive by 95% (95% CI:76, 99) during the first 2 months of life, 70% (95% CI: 52, 82) during the first 4 months of life, and 61% (95% CI: 42, 74) during the first 6 months of life (Supplemental Table2). Google Scholar. Children currently account for about 18.5% of reported COVID-19 cases in the United States1. From Jan 1 to Mar 16, 2022, when Omicron was predominant, 4,781 (0.02%) of 19,473,570 booster recipients died of COVID-19, and 58,020 (0.3%) died of other causes. part 56; 42 U.S.C. New charts from the Centers for Disease Control and Prevention (CDC) showed that hospitalization rates were much lower among those who were vaccinated even as Omicron was sweeping the nation. Rep. 71, 2630 (2022). Nature. The difference between the two studies might be due to population characteristics and the timing of follow-up as ours went through May 31, 2022, while the Norwegian study ended in April 2022. 139, e20164091 (2017). Arthur Reingold, Jeremy Roland, Ashley Coates, California Emerging Infections Program, Oakland, California; Breanna Kawasaki, Rachel Herlihy, Isaac Armistead, Madelyn Lensing, Jordan Surgnier, Sarah McLafferty, Colorado Department of Public Health & Environment; Ann Basting, Tessa Carter, Maria Correa, Daewi Kim, Carol Lyons, Hazhia Sorosindi, Connecticut Emerging Infections Program, Yale School of Public Health, New Haven, Connecticut; Emily Fawcett, Katelyn Ward, Jana Manning, Asmith Joseph, Allison Roebling, Chandler Surell, Stephanie Lehman, Taylor Eisenstein, Suzanne Segler, Grayson Kallas, Marina Bruck, Rayna Ceaser, Annabel Patterson, Sabrina Hendrick, Johanna Hernandez, Hope Wilson, School of Medicine, Emory University, Georgia Emerging Infections Program, Georgia Department of Public Health, Veterans Affairs Medical Center, Foundation for Atlanta Veterans Education and Research, Atlanta, Georgia; Jim Collins, Shannon Johnson, Justin Henderson, Sue Kim, Alexander Kohrman, Lauren Leegwater, Val Tellez Nunez, Sierra Peguies-Khan, Michigan Department of Health and Human Services; Kayla Bilski, Kristen Ehresmann, Richard Danila, Jake Garfin, Grace Hernandez, Kieu My Phi, Ruth Lynfield, Sara Vetter, Xiong Wang, Minnesota Department of Health; Daniel M. Sosin, Susan L. Ropp, Sunshine Martinez, Jasmyn Sanchez, Cory Cline, Melissa Judson, Florent Nkouaga, Mark Montoya, New Mexico Department of Health; Sarah Lathrop, Kathy M. Angeles, Yadira Salazar-Sanchez, Sarah A. Khanlian, Nancy Eisenberg, Dominic Rudin, Sarah Shrum Davis, Mayvilynne Poblete, Emily B. Hancock, Francesca Pacheco, New Mexico Emerging Infections Program; Yassir Talha, Celina Chavez, Jennifer Akpo, Alesia Reed, Murtada Khalifa, CDC Foundation, New Mexico Department of Health; Suzanne McGuire, Kerianne Engesser, Nancy Spina, Adam Rowe, New York State Department of Health; Sophrena Bushey, Virginia Cafferky, Maria Gaitan, Christine Long, Thomas Peer, Kevin Popham, University of Rochester School of Medicine and Dentistry, Rochester, New York; Julie Freshwater, Denise Ingabire-Smith, Ann Salvator, Rebekah Sutter, Ohio Department of Health; Sam Hawkins, Public Health Division, Oregon Health Authority; Tiffanie Markus, Katie Dyer, Karen Leib, Terri McMinn, Danielle Ndi, Gail Hughett, Emmanuel Sackey, Kathy Billings, Anise Elie, Manideepthi Pemmaraju, Vanderbilt University Medical Center, Nashville, Tennessee; Amanda Carter, Andrea George, Andrew Haraghey, Ashley Swain, Caitlin Shaw, Laine McCullough, Mary Hill, Ryan Chatelain, Salt Lake County Health Department, Salt Lake City, Utah; Alvin Shultz, Robert W. Pinner, Rainy Henry, Sonja Mali Nti-Berko, CDC; Elizabeth Daly, Council of State and Territorial Epidemiologists. Zerbo, O., Ray, G.T., Fireman, B. et al. References to non-CDC sites on the Internet are Efficacy and safety of the mRNA-1273 SARS-CoV-2 vaccine. https://doi.org/10.1038/s41467-023-36547-4, DOI: https://doi.org/10.1038/s41467-023-36547-4. Anyone you share the following link with will be able to read this content: Sorry, a shareable link is not currently available for this article. Most mothers (66.14%) were between ages 25 and <35 years, and more than a quarter (27.27%) were of Asian race, 5.16% were Black, 24.44% were of Hispanic ethnicity and 37.57% were White. Kim, L. et al. Individual and neighborhood factors associated with failure to vaccinate against influenza during pregnancy. By the end of December, Omicron made up 58% of all cases in the US, per Our World in Data, but Delta is thought to cause more severe disease and more hospitalizations than Omicron on average. Clinical trends among U.S. adults hospitalized with COVID-19, March to December 2020: a cross-sectional study. Use of trade names and commercial sources is for identification only and does not imply endorsement by the U.S. Department of There was no link between risk of COVID-19 death and race, except for Indian patients, who were at slightly higher risk than their White peers. Ann Intern Med 2021;174:140919. COVID-19 vaccine surveillance report: week 6. In conclusion, in this population-based cohort study, we found that infants born to mothers who received at least two doses of an mRNA COVID-19 vaccine during pregnancy were at lower risk of testing positive for SARS-CoV-2 and were at lower risk of hospitalization during the first 6 months of life compared with infants whose mothers were unvaccinated during pregnancy. J. Obstet. 1). Although all data used in this analysis were anonymised, the individual-level nature of the data used risks individuals being identified, or being able to self-identify, if the data are released publicly. MMWR Morb Mortal Wkly Rep 2020;69:134754. J. Med. They help us to know which pages are the most and least popular and see how visitors move around the site. Our primary cohort analysis used calendar days as the underlying scale to ensure that we compared infants of vaccinated and unvaccinated mothers on the same calendar days because vaccination status during pregnancy and risk of SARS-CoV-2 infection varied over the study period. In this analysis, we estimated the odds ratio (OR) of vaccination of mothers of infants who tested positive for SARS-CoV-2 versus infants who tested negative using logistic regression models conditioned (stratified) on the calendar date of the test so that infants testing positive on a certain day were compared to infants testing negative on that same day. wrote the initial manuscript. Covid-19 vaccine effectiveness against the Omicron (B.1.1.529) variant. Data from the COVID-19Associated Hospitalization Surveillance Network (COVID-NET) were analyzed to compare COVID-19associated hospitalization rates among adults aged 18 years during B.1.617.2 (Delta; July 1December 18, 2021) and Omicron (December 19, 2021January 31, 2022) variant predominance, overall and by race/ethnicity and vaccination status. Effectiveness of COVID-19 vaccines in preventing hospitalization among adults aged 65 yearsCOVID-NET, 13 states, FebruaryApril 2021. TN and NMF validated the data. 383, 26032615 (2020). Members receive almost all their medical care at KPNC-owned facilities, including clinics, hospitals, pharmacies, and laboratories. Vaccinations were limited only to those received during pregnancy. * Overall rates are unadjusted; rates presented by racial and ethnic group are age-adjusted. Vaccines: The CDC recommends that everyone age 5 and older get an updated covid booster shot. ISSN 2041-1723 (online). All adults should stay up to date with COVID-19 vaccination to reduce their risk for COVID-19associated hospitalization. Christopher A. Taylor, PhD1; Michael Whitaker, MPH1; Onika Anglin, MPH1,2; Jennifer Milucky, MSPH1; Kadam Patel, MPH1,2; Huong Pham, MPH1; Shua J. Chai, MD3,4; Nisha B. Alden, MPH5; Kimberly Yousey-Hindes, MPH6; Evan J. Anderson, MD7,8,9; Kenzie Teno, MPH10; Libby Reeg, MPH11; Kathryn Como-Sabetti, MPH12; Molly Bleecker, MA13; Grant Barney, MPH14; Nancy M. Bennett, MD15; Laurie M. Billing, MPH16; Melissa Sutton, MD17; H. Keipp Talbot, MD18; Keegan McCaffrey19; Fiona P. Havers, MD1; COVID-NET Surveillance Team (View author affiliations). Methods: One hundred and . Omicron cases are exploding. Scientists still don't know how bad the This is a relevant consideration because vaccines can be less effective in persons with a weakened immune system. Age-adjusted hospitalization rates among Black adults peaked at 94.7 (January 8, 2022), higher than that among all other racial and ethnic groups, 3.8 times the rate among White adults (24.8) for the same week, and 2.5 times the previous peak (January 16, 2021) among Black adults (37.2). Taken together, these findings suggest that the increased risk for hospitalization among Black adults during the Omicron-predominant period might also be due, in part, to lower proportions of Black adults receiving both the primary vaccination series and booster doses. The study setting was Kaiser Permanente Northern California (KPNC), an integrated healthcare delivery organization that provides comprehensive healthcare to ~4.4 million members as of 2019. In all models, we used calendar days as the time scale to account for changes over time in SARS-CoV-2 circulation and vaccine uptake. 384, 22732282 (2021). Weekly COVID-19-associated hospitalization rates among U.S. infants and children aged 0-4 years have declined since the peak of January 8, 2022; however, peak rates during Omicron predominance were approximately five times those of the peak during Delta predominance. Maternal SARS-CoV-2 vaccination and infant protection against SARS-CoV-2 during the first six months of life, https://doi.org/10.1038/s41467-023-36547-4. Data analysis shows omicron variant less severe, better at evading vaccines Among these infants, for our main analysis, we excluded 21,891 (35.2%) based on maternal exclusion criteria and 10,412 (16.8%) after applying infant exclusion criteria (Fig. CDC is not responsible for Section 508 compliance (accessibility) on other federal or private website. This activity was reviewed by CDC and conducted consistent with applicable federal law and CDC policy.. To update your cookie settings, please visit the, https://doi.org/10.1016/S0140-6736(22)00462-7, Comparative analysis of the risks of hospitalisation and death associated with SARS-CoV-2 omicron (B.1.1.529) and delta (B.1.617.2) variants in England: a cohort study, https://www.who.int/news/item/26-11-2021-classification-of-omicron-(b.1.1.529)-sars-cov-2-variant-of-concern, https://www.cdc.gov/coronavirus/2019-ncov/science/science-briefs/scientific-brief-omicron-variant.html, https://www.mrc-bsu.cam.ac.uk/now-casting/report-on-nowcasting-and-forecasting-9th-december-2021/, https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1050999/Technical-Briefing-35-28January2022.pdf, https://www.research.ed.ac.uk/en/publications/severity-of-omicron-variant-of-concern-and-vaccine-effectiveness-, https://www.imperial.ac.uk/mrc-global-infectious-disease-analysis/covid-19/report-50-severity-omicron/, https://doi.org/10.1101/2022.01.11.22269045, https://doi.org/10.1101/2022.01.12.22269179, https://doi.org/10.1101/2022.01.20.22269406, https://doi.org/10.1101/2022.01.12.22269148, https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/1054071/vaccine-surveillance-report-week-6.pdf, https://www.gov.uk/government/publications/investigation-of-sars-cov-2-variants-routine-variant-data-update, https://www.gov.uk/government/publications/nhs-test-and-trace-statistics-england-methodology/nhs-test-and-trace-statistics-england-methodology, https://www.england.nhs.uk/contact-us/privacy-notice/national-flu-vaccination-programme/, https://digital.nhs.uk/data-and-information/data-collections-and-data-sets/data-sets/emergency-care-data-set-ecds, https://digital.nhs.uk/services/secondary-uses-service-sus, https://www.england.nhs.uk/statistics/statistical-work-areas/covid-19-hospital-activity/, https://doi.org/10.1101/2021.08.13.21262014, View Large

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