Slider with three articles shown per slide. However, we have no reason to expect a strong association between the absence of NHS number and SARS-CoV-2 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. Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website. Risk of hospital admission for patients with SARS-CoV-2 variant B.1.1.7: cohort analysis. "The subpopulations with the highest risk should be considered a priority for COVID-19 therapeutics and further booster doses.". Age was the most important risk factor for COVID-19 death (eg, HR, 31.3 for an 80-year-old vs a 50-year-old). 26 Among those fully vaccinated individuals 5 years of age who are booster eligible, only 49% have received a . Access your favorite topics in a personalized feed while you're on the go. Infect. The report shows people catching Omicron are: 31% to 45% less likely to go to A&E. 50% to 70% less likely to be admitted to hospital for treatment. It's not clear which variant might have been associated with these hospitalizations. The vaccines have proved highly safe and effective at reducing the risk of severe illness, hospitalization and death. COVID-19; IL-6 . Hospitalization rates during peak Omicron circulation (January 2022) among unvaccinated adults remained 12 times the rates among vaccinated adults who received booster or additional doses and four times the rates among adults who received a primary series, but no booster or additional dose. The U.K. Health. 552a; 44 U.S.C. . JAMA 326, 16291631 (2021). supervised chart reviews. Delahoy MJ, Whitaker M, OHalloran A, et al. Three recent epidemiological studies found that vaccination during pregnancy was associated with a reduced risk of SARS-CoV-2 infection in infants during their first 4 months of life and a reduced risk of hospitalization during the first 5 months of life17,18,19. 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. CDC is not responsible for the content Initial hospital data from England and Denmark also suggest Omicron cases are less severe. American Academy of Pediatrics. NHS Test and Trace statistics (England): methodology. Iowa did not provide immunization data but is included in the overall population-based hospitalization rates. 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. Messer, L. C. et al. RESP-NET: COVID-19 Associated Hospitalization Rates among Adults Ages 65 Years and Older CDC's Respiratory Virus Hospitalization Surveillance Network (RESP-NET) shows that overall weekly rates of COVID-19-associated hospitalizations have declined for all age groups from a peak in December 2022. Persons who received no doses of any COVID-19 vaccine were considered unvaccinated. MMWR Morb Mortal Wkly Rep 2022;71:466473. Department of Health and Human Services. volume14, Articlenumber:894 (2023) On 13 December, Denmark released data showing that hospitalization rates for people infected with Omicron seemed to be on a par with those for people infected with other variants. CAS NMF, MC, GD, DDA, AMP, and ST handled project administration. Johnson AG, Amin AB, Ali AR, et al. Waning 2-dose and 3-dose effectiveness of mRNA vaccines against COVID-19-associated emergency department and urgent care encounters and hospitalizations among adults during periods of delta and omicron variant predominanceVISION Network, 10 states, August 2021-January 2022. We further classified vaccination status by the trimester within which the second dose or the unique dose (for those who received only one dose) was received. Most mothers (1032 of 1138) who received only one dose received the vaccine during the third trimester. According to the CDC, hospitalization rates among the unvaccinated were 16 times higher in December overall. Annually, approximately 40,000 births occur at KPNC facilities. mmwrq@cdc.gov. 20, 15225 (2016). Over the entire study period, the crude rate of hospitalization with a SARS-CoV-2 positive test was lower during the first 6 months of life among infants whose mothers received at least two doses of mRNA COVID-19 vaccines during pregnancy compared with infants whose mothers were unvaccinated during pregnancy (21/100,000 PY vs. 100/100,000 PY). Two recent papers claim there are no differences between surgical masks and respirators for preventing the spread of respiratory diseases like COVID-19 and flu, but the articles are deeply flawed. https://doi.org/10.1016/j.jpeds.2022.09.059 (2022). Data were available for researchers who meet the criteria for access to Kaiser Permanente Northern California confidential data. These data should be taken with a grain of salt. Monthly COVID-19 hospitalization rates were 3.5 to 17.7 times higher in unvaccinated patients than in their vaccinated counterparts, regardless of whether they had received a booster. endorsement of these organizations or their programs by CDC or the U.S. E.L. coordinated administrative tasks. ISSN 2041-1723 (online). TN and NMF were responsible for visualisation. All information these cookies collect is aggregated and therefore anonymous. Marks, K. J. et al. Coinciding with Omicron variant predominance, COVID-19associated hospitalization rates among adults increased in late December 2021 and peaked in January 2022; rates increased more among Black adults relative to rates among adults of other racial and ethnic groups. Just 28% of children in the age group - around 8 million . the date of publication. the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Evan J. Anderson reports grants from Pfizer, Merck, PaxVax, Micron, Sanofi-Pasteur, Janssen, MedImmune, and GlaxoSmithKline; personal fees from Pfizer, Medscape, Kentucky Bioprocessing, Inc., Sanofi-Pasteur, and Janssen, outside the submitted work; and institutional funding from the National Institutes of Health to conduct clinical trials of Moderna and Janssen COVID-19 vaccines. All rights Reserved. Maryland did not contribute data after December 4, 2021, but did contribute data for previous weeks. During the Omicron-predominant period, hospitalization rates increased among unvaccinated persons and those who completed a primary series, with and without receipt of a booster or additional dose (Figure 2). COVID-19 vaccination coverage among pregnant women during pregnancyEight Integrated Health Care Organizations, United States, December 14, 2020-May 8, 2021. 386, 15321546 (2022). Gordon, N. & Lin, T. The Kaiser Permanente Northern California adult member health survey. 2022 The Authors. Adults who received booster doses were classified as those who completed the primary series and received an additional or booster dose on or after August 13, 2021, at any time after completion of the primary series, and 14 days before a positive test result for SARS-CoV-2, as COVID-19associated hospitalizations are a lagging indicator and time passed after receipt of a booster dose has been shown to be associated with reduced rates of COVID-19 infection (https://www.nejm.org/doi/full/10.1056/NEJMoa2114255). Effectiveness of COVID-19 Pfizer-BioNTech BNT162b2 mRNA vaccination in preventing COVID-19-associated emergency department and urgent care encounters and hospitalizations among nonimmunocompromised children and adolescents aged 5-17 yearsVISION Network, 10 states, April 2021-January 2022. J. Med. Mortal. We conducted secondary sensitivity analyses restricting the population to infants who received at least one SARS-CoV-2 PCR test. SARS-CoV-2 variant data update, England: Version 21. Klein, N. P. et al. Google Scholar. KPNC members are similar to the broad catchment population in Northern California in terms of sociodemographic characteristics34. 1.04-1.49) after adjusting for age, sex, and vaccine characteristics. Wkly. 387, 109119 (2022). Adults with no documented receipt of any COVID-19 vaccine dose before the test date were considered unvaccinated. All authors reviewed the manuscript. Image, Download Hi-res Baden, L. R. et al. The University of Minnesota is an equal opportunity educator and employer, Office of the Vice President for Research | Contact U of M | Privacy Policy, Mary Van Beusekom | News Writer | CIDRAP News, Two recent papers claim there are no differences between surgical masks and respirators for preventing the spread of respiratory diseases like COVID-19 and flu, but the articles. We also conducted analyses based on the trimester during which the vaccine was received during pregnancy (first, second, or third trimester). Zerbo, O. et al. 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). Nursing home residents have been disproportionately affected by COVID-19; older age, comorbidities, and the congregate nature of nursing homes place residents at higher risk for infection and severe COVID-19-associated outcomes . Hospitalization rates among non-Hispanic Black adults increased more than rates in other racial/ethnic groups. 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 All adults should stay up to date (1) with COVID-19 vaccination to reduce their risk for COVID-19associated hospitalization. Rep. 7, 255263 (2022). In this design, we used Cox proportional hazards models with calendar days as the underlying scale to estimate hazard ratios and calculated vaccine effectiveness as 1 minus the hazard ratio. and B.F. P.R. Dr. Klein reported receiving grants from Pfizer, Merck, GlaxoSmithKline, and Sanofi Pasteur. BNT162b2 mRNA Covid-19 vaccine in a nationwide mass vaccination setting. Children currently account for about 18.5% of reported COVID-19 cases in the United States1. In January 2022, unvaccinated adults and those vaccinated with a primary series, but no booster or additional dose, were 12 and three times as likely to be hospitalized, respectively, as were adults who received booster or additional doses. New charts from the Centers for Disease Control and Prevention (CDC), more severe disease and more hospitalizations, Insider's Catherine Schuster Bruce reported. Informed consent was waived because this was a data-only study with no direct contact with participants. Article All authors have completed and submitted the International Committee of Medical Journal Editors form for disclosure of potential conflicts of interest. Models in this analysis were adjusted for the same covariates included in the primary analysis. DOI: http://dx.doi.org/10.15585/mmwr.mm7112e2. As infants aged, protection provided by maternal vaccination decreased during both periods. Persons who received only 1 vaccine dose of a 2-dose series 14 days before the SARS-CoV-2 test date or had received a single dose of either a 1- or 2-dose vaccination series <14 days before the positive SARS-CoV-2 test result were considered partially vaccinated and were not included in rates by vaccination status. Black adults accounted for a higher percentage of hospitalizations during the Omicron-predominant period (26.7%) than during the Delta-predominant period (22.2%, p = 0.05). **** ICU admission and IMV are not mutually exclusive categories, and patients could have received both. 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. Hospitalization rates during peak Omicron circulation (January 2022) among unvaccinated adults remained 12 times the rates among vaccinated adults who received booster or additional doses and four times the rates among adults who received a primary series, but no booster or additional dose. Hospitalizations rates increased among all adults irrespective of vaccination status (unvaccinated, primary series only, or primary series plus a booster or additional dose). Between December 15, 2020, and May 31, 2022, we identified 62,117 infants born at Kaiser Permanente Northern California (KPNC), an integrated healthcare delivery organization. Jackson, M. L. & Nelson, J. C. The test-negative design for estimating influenza vaccine effectiveness. A study from the U.K. government, published last week, found that three doses of vaccine. Includes current treatment or recent diagnosis within the previous 12 months of an immunosuppressive condition or use of an immunosuppressive therapy. State data show the average age for COVID deaths was about 80 in late 2020, but dropped in spring 2021 to as low as 69 after most older adults received their first COVID vaccines. ***** An additional 172 (3.4%, 95% CI=2.7%4.2%) adults were partially vaccinated, 69 (0.9%, 95% CI=0.61.2) received a primary vaccination series <14 days before a positive for SARS-CoV-2 test result, and 186 (4.1%) had unknown vaccination status; these groups are not further described in this analysis. Late last year, as Omicron was spreading fast in the US, hospitalization rates per 100,000 rose sharply among unvaccinated adults, while rates in those who were fully vaccinated remained. Am. Questions or messages regarding errors in formatting should be addressed to 40, e137e145 (2021). Vaccine 35, 58505857 (2017). Abbreviations: COVID-NET = COVID-19Associated Hospitalization Surveillance Network; ICU=intensive care unit; IMV=invasive mechanical ventilation; LTCF=long-term care facility; NA = not applicable. The Spanish Health Ministry also publishes hospitalization data throughout Spain broken down by vaccination status, although in this case it is based on estimates: to calculate the number of unvaccinated in each age group, they subtract the number of vaccinated from the population in 2020.However, the target population will have grown since then, so it is possible that the ministry's . The group raised concerns about a small number of Guillain-Barre syndrome cases in vaccine recipients and wanted more data, especially on efficacy in those at highest risk. Adults with a positive result whose SARS-CoV-2 test date was 14 days after the first dose of a 2-dose series but <14 days after receipt of the second dose were considered partially vaccinated. J. Med. Schrag, S. J. et al. N. Engl. Med. Hospitalisation associated with SARS-CoV-2 delta variant in Denmark. Hospitalization of infants and children aged 0-4 years with laboratory-confirmed COVID-19COVID-NET, 14 states, March 2020-February 2022. Experts say they. Kim, L. et al. In addition, our study period included two different SARV-CoV-2 variants, which allowed estimation of the effectiveness of vaccination during pregnancy in infants during both the Delta and Omicron variant periods. Vaccinated patients during the Delta wave were 37% (over with two doses), while during the Omicron wave they were 57%. "The association between the QCovid risk groups and the risk of death were stronger in people who had received a booster and were infected by the Omicron variant compared with evidence from the Alpha and Delta period in doubly vaccinated individuals," the authors wrote. Hospitalization rates were 10.5 times higher in the unvaccinated and 2.5 times higher in vaccinated patients with no booster than in booster recipients. We monitored the seroprevalence of SARS-CoV-2 nucleocapsid (anti-N) and spike protein (anti-S) antibodies in blood donors across Canada from September 2021 to June 2022 in 202,123 . Maternal vaccination and risk of hospitalization for Covid-19 among infants. Ousseny Zerbo. J. Med. 4% of cases) without NHS numbers were excluded from our primary analysis. J., Fireman. ** Monthly incidence among adults who received booster or additional doses was calculated by summing the total number of COVID-19 patients with booster or additional doses hospitalized over all days of the month and dividing by the sum of adults with booster or additional doses in the underlying population for each day of the month. This method was also used for calculations in unvaccinated persons and those who received a primary series but not a booster or additional dose.. No other potential conflicts of interest were disclosed. O.Z. https://doi.org . Morb. Article Google Scholar. Cohen-Stavi, C. J. et al. National influenza and COVID-19 surveillance report: 27 January 2022 (week 4). The study had limitations worth noting. Risk was especially high for people with severe combined immunodeficiency (HR, 6.2). Maternal vaccination was protective, but protection was lower during the Omicron period than during Delta. The proportion of hospitalized Black adults who received a primary COVID-19 vaccination series with or without a booster or additional dose increased from 4.7% and 14.9%, respectively, during the Delta-predominant period to 14.8% and 25.5%, respectively, during the Omicron-predominant period; Hispanic adults experienced smaller increases. Andrews, N. et al. In the meantime, to ensure continued support, we are displaying the site without styles Use the Previous and Next buttons to navigate the slides or the slide controller buttons at the end to navigate through each slide. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Selected counties in California, Colorado, Connecticut, Georgia, Iowa, Maryland, Michigan, Minnesota, New Mexico, New York, Ohio, Oregon, Tennessee, and Utah (https://www.cdc.gov/mmwr/volumes/69/wr/mm6915e3.htm). There were only one hospitalized case among the children of vaccinated mothers and nine hospitalized cases among the children of unvaccinated mothers (Table1). Proportions between the pre-Delta and Delta period were compared using chi-square tests; p-values <0.05 were considered statistically significant, adjusted for multiple comparisons using the Bonferroni correction method. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance. part 56; 42 U.S.C. Vaccine 40, 656665 (2022). Second, vaccination status is subject to misclassification; this might affect estimation of rates by vaccination status. Among all adults, relative to the Delta-predominant period, COVID-19related illness was the primary reason for admission for a smaller percentage of hospitalizations (87.5% versus 95.5%, p<0.01), and median length of stay was shorter (4 versus 5 days, p<0.01) during the Omicron-predominant period; during this period, the proportion of patients admitted to an intensive care unit, who received invasive mechanical ventilation, and who died in-hospital decreased significantly (all p<0.01). The development of a standardized neighborhood deprivation index. Thank you for visiting nature.com. 1CDC COVID-19 Emergency Response Team; 2General Dynamics Information Technology, Atlanta, Georgia; 3California Emerging Infections Program, Oakland, California; 4Career Epidemiology Field Officer Program, CDC; 5Colorado Department of Public Health & Environment; 6Connecticut Emerging Infections Program, Yale School of Public Health, New Haven, Connecticut; 7Emory University School of Medicine, Atlanta, Georgia; 8Georgia Emerging Infections Program, Georgia Department of Public Health; 9Atlanta Veterans Affairs Medical Center, Atlanta, Georgia; 10Iowa Department of Public Health; 11Michigan Department of Health and Human Services; 12Minnesota Department of Health; 13New Mexico Emerging Infections Program, University of New Mexico, Albuquerque, New Mexico; 14New York State Department of Health; 15University of Rochester School of Medicine and Dentistry, Rochester, New York; 16Ohio Department of Health; 17Public Health Division, Oregon Health Authority; 18Vanderbilt University Medical Center, Nashville, Tennessee; 19Utah Department of Health. Vaccination status (unvaccinated, receipt of a primary series only, or receipt of a primary series plus a booster or additional dose) was determined for individual hospitalized patients and for the catchment population using state immunization information systems data (2). Officials have received a growing number of reports of XDR Shigella, which is highly transmissible and resistant to commonly recommended antibiotics, in adults. In King County, Wash., which includes Seattle, unvaccinated people were 13 times more likely to be hospitalized for coronavirus since December than people who were fully vaccinated. Among the infants in the cohort, 19,418 (64.06%) of the mothers were unvaccinated during pregnancy, 1138 (3.75%) of the mothers received one dose of an mRNA COVID-19 vaccine and 9755 (32.18%) received 2 doses during pregnancy (Table1). Additional COVID-NET methods for determining vaccination status have been described previously. Get the most important science stories of the day, free in your inbox. Vaccinated patients were older (68 vs. 57 years), and 62% had at least one comorbidity Admission to the ICU was 20%, and the mortality rate at 30 days was 14%. https://www.medrxiv.org/content/10.1101/2022.01.11.22269045v1, https://data.cdc.gov/Vaccinations/COVID-19-Vaccination-Demographics-in-the-United-St/km4m-vcsb. Article TN, NMF, SFlax, SFunk, SA, SB, and ST did the formal analysis. COVID-19 vaccines have demonstrated both high efficacy in clinical trials and high real-world effectiveness, especially against the original and Delta variant of the virus6,7,8,9,10. For mothers of infants in the cohort, we extracted from the electronic health record data: age at pregnancy onset, self-reported race/ethnicity (Asian, Black, Hispanic, Pacific Islander, Multiracial, Native American, Other, White), the primary KPNC facility at which the woman received most of their health care, insurance payor (dichotomized as Medicare/Medicaid/other subsidized insurance and Other), neighborhood deprivation index [NDI]35 categorized into quartiles with higher values representing greater deprivation), pre-pregnancy body mass index (BMI=kg/m2; underweight <18.5, normal 18.524.9, overweight 25.029.9, obese 30.0), pre-pregnancy diabetes status, pre-pregnancy hypertension, and parity (0, 1, 2, 3, 4). Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data. Dis. It is not inevitable that viral evolution leads to lower severity. Rates are calculated using the CDC National Center for Health Statistics vintage 2020 bridged-race postcensal population estimates for the counties included in surveillance. Efficacy and safety of the mRNA-1273 SARS-CoV-2 vaccine. Saving Lives, Protecting People, https://covid.cdc.gov/covid-data-tracker/#variant-proportions, https://www.cdc.gov/coronavirus/2019-ncov/covid-data/covid-net/purpose-methods.html, https://www.cdc.gov/mmwr/volumes/69/wr/mm6915e3.htm, https://www.cdc.gov/nchs/nvss/bridged_race.htm, https://www.medrxiv.org/content/10.1101/2021.08.27.21262356v1, https://www.cdc.gov/mmwr/volumes/70/wr/mm7050e2.htm, https://www.nejm.org/doi/full/10.1056/NEJMoa2114255, https://medrxiv.org/cgi/content/short/2021.08.27.21262356v1, https://www.medrxiv.org/content/10.1101/2022.01.11.22269045v1, https://data.cdc.gov/Vaccinations/COVID-19-Vaccination-Demographics-in-the-United-St/km4m-vcsb, https://www.cdc.gov/coronavirus/2019-ncov/vaccines/stay-up-to-date.html, https://doi.org/10.1001/jamanetworkopen.2021.30479, Centers for Disease Control and Prevention, U.S. Department of Health & Human Services, American Indian or Alaska Native, non-Hispanic, Psychiatric admission requiring medical care. 383, 26032615 (2020). https://www.cdc.gov/nchs/nvss/bridged_race.htm, ** https://www.medrxiv.org/content/10.1101/2021.08.27.21262356v1, On August 13, 2021, CDCs Advisory Committee on Immunization Practices (ACIP) issued the first of several recommendations for additional or booster doses of COVID-19 vaccine. The company also said full results of its 2,250-person study confirmed the pill's promising early results against the virus: The drug reduced combined hospitalizations and deaths by about 89. Over the entire study period, the incidence of hospitalization for COVID-19 was lower during the first 6 months of life among infants of vaccinated mothers compared with infants of unvaccinated mothers (21/100,000 person-years vs. 100/100,000 person-years). and JavaScript. Thank you for taking the time to confirm your preferences. In the present study, the mothers of only 32% of infants in the cohort received at least 2 doses during pregnancy. Further information on research design is available in theNature Portfolio Reporting Summary linked to this article. However, a milder virus could still put pressure . The final study population included 30311 (48.8%) infants who were KPNC members at least 2 months after birth. Am. It is possible that this practice may have led to some misclassification of the outcome, and we were unable to assess whether this misclassification was differential between vaccinated and unvaccinated mothers. "The high hospitalization rates in unvaccinated compared with vaccinated persons with and without a booster dose underscores the importance of COVID-19 vaccinations in preventing hospitalizations and suggests that increasing vaccination coverage, including booster dose coverage, can prevent hospitalizations, serious illness, and death," the researchers wrote. COVID-19 hospitalization rates per 100,000 population by age and vaccination status, January 05 to February 01, 2023 Age group Age-specific rate per 100,000 among unvaccinated individuals Age-specific rate per 100,000 among those who received at least one booster dose Likelihood of unvaccinated individuals being hospitalized with According to the Ontario Science Table's online dashboard, the hospital occupancy rate for the unvaccinated was 611 per million unvaccinated people in the province's population as of Jan. 7,. Laurie M. Billing and Kenzie Teno report grants from the Council of State and Territorial Epidemiologists during the conduct of the study.
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