The research was published yesterday in JAMA Internal Medicine. During the Omicron-predominant period, weekly COVID-19associated hospitalization rates (hospitalizations per 100,000 adults) peaked at 38.4, compared with 15.5 during Delta predominance. COVID-NET conducts population-based surveillance for laboratory-confirmed COVID-19associated hospitalizations in 99 counties across 14 states. COVID-19associated hospitalizations are those occurring among residents of a predefined surveillance catchment area who have a positive real-time reverse transcriptionpolymerase chain reaction (RT-PCR) or rapid antigen detection test result for SARS-CoV-2 during hospitalization or the 14 days preceding admission. 1.04-1.49) after adjusting for age, sex, and vaccine characteristics. In this primary design, all eligible infants meeting inclusion criteria were included without sampling which improved power and minimized bias related to selection. Children born at Kaiser Permanente Northern California from December 15, 2020, through May 31, 2022. Among fully vaccinated people without a booster, rates were lower at 3,355.5 per 100,000 for COVID-19 cases and 35.4 per 100,000 for hospitalizations. Percentages presented for the overall number are weighted row percentages. SARS-CoV-2 infections can result in COVID-19associated hospitalizations, even among vaccinated persons. The second study, led by Office for National Statistics researchers in Wales, involved death rates and risk factors in adults in England who had received an mRNA booster at least 14 days before Dec 31, 2021. 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. Because the immune status of all patients is not known, an additional dose (recommended for persons with a weakened immune system) cannot be distinguished from a booster dose. BNT162b2 vaccine effectiveness against omicron in children 5 to 11 years of age. J. MMWR Morb Mortal Wkly Rep 2022;71:14652. Symptoms are abstracted from the medical chart and might not be complete. DeSilva, M. et al. These results suggest that in addition to providing protection against testing positive, vaccination during pregnancy also provides protection against hospitalization (severe disease) in infants during their first 6 months of life as previously reported recently18,19.
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omicron hospitalization rate vaccinated by age