Covid today in Italy, intensive care and no vax, vaccine and dose booster. The effectiveness of the vaccine in preventing cases of severe Covid-19 disease is 85% in vaccinated with a full course of less than 90 days, 88% in vaccinated with a full course of 91 and 120 days., and 82% in vaccinated individuals who have completed the vaccination cycle for more than 120 days and reaches 92% in subjects vaccinated with a booster dose. This is what emerges from the extended report of the Higher Institute of Health (Iss), ‘Covid-19: surveillance, impact of infections and vaccination efficacy’.
The preventive effect of the vaccine against the diagnosis of Sars-CoV-2 infection is 63% within 90 days of the completion of the vaccination course, 52% between 91 and 120 days, and 44% beyond 120 days of the completion of the course. vaccinal. 63% is reached in subjects vaccinated with a booster dose.
The age-standardized intensive care admissions rate for the population over 12 years of age in the period 14 January-13 February for the unvaccinated (25 intensive care admissions per 100,000 inhabitants) is approximately five times higher than for vaccinated with a complete cycle of less than 120 days (5 per 100,000 inhabitants) and about 16 times higher than those vaccinated with an additional / booster dose (2 intensive care admissions per 100,000 inhabitants), the report reads again.
The age-standardized hospitalization rate for the population over 12 years old, again in the period January 14-February 13 for the unvaccinated (321 hospitalizations per 100,000 inhabitants) is about four times higher than for vaccinated with a complete cycle less than 120 days (84 hospitalizations per 100,000) and about nine times higher than vaccinated with additional dose / booster (36 hospitalizations per 100,000 population).
The ISS also reports that in the last week the percentage of reinfections on the total reported cases is equal to 3.2%, stable compared to the previous week. From 24 August 2021 to 2 March of this year, 241,753 cases of reinfection were reported, equal to 3% of the total cases notified.
“The analysis of the risk of reinfection starting from 6 December 2021 (the date considered to be the reference date for the start of the spread of the Omicron variant) – explains the ISS – highlights an increase in the adjusted relative risk of reinfection in subjects with the first diagnosis of Covid-19 notified for more than 210 days compared to those who had the first diagnosis of Covid-19 between the previous 90 and 210 days; in subjects not vaccinated or vaccinated with at least one dose for over 120 days compared to vaccinated with at least one dose by 120 days; in females compared to males. The greater risk in females may probably be due to the greater presence of women in school (> 80%) where an intense screening activity is carried out and to the fact that women carry out more often the role of caregiver in the family “. Furthermore, the risk of re-infection is greater in health care workers and “in the younger age groups (12 to 49 years) than in first diagnosed people between the ages of 50-59. Probably the greatest risk of reinfection in the younger age groups is attributable to higher risk behaviors and exposures, compared to the age groups over 60 “.
Covid also loosens its grip even among the youngest. From the second decade of January, the percentage of cases reported in the school age population (0-19 years) compared to the rest of the population remained stable at 29%. In the last week, 19% of school-age cases were diagnosed in children under 5, 43% in the age group 5-11, 38% in the age group 12-19. The incidence and hospitalization rates are confirmed to be decreasing in all age groups.
From the beginning of the epidemic in Italy to 2 March 2022, 2,886,769 cases were diagnosed and reported to the integrated Covid surveillance system in the population 0-19 years, of which 14,878 hospitalized, 344 hospitalized in intensive care and 49 died.