N. Engl. 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. J. Med. Sect. 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. It showed that boosters further reduced the risk of hospitalization. Frequency, characteristics and complications of COVID-19 in hospitalized infants. part 46, 21 C.F.R. 383, 26032615 (2020). 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). BNT162b2 vaccine effectiveness against omicron in children 5 to 11 years of age. Acosta AM, Garg S, Pham H, et al. Thompson, M. G. et al. Data were available for researchers who meet the criteria for access to Kaiser Permanente Northern California confidential data. Additional COVID-NET methods for determining vaccination status have been described previously. In the present study, the mothers of only 32% of infants in the cohort received at least 2 doses during pregnancy. 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 . 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 These proportions are lower compared with 47.3% of White persons who received a primary series and 54.5% of eligible adults who received a booster dose. Relative to the Delta-predominant period, Black adults accounted for a larger proportion of unvaccinated adults during the Omicron-predominant period, and age-adjusted hospitalization rates for Black adults increased to the highest rate among all racial and ethnic groups for any week during the pandemic.