Home » Omicron, the invisible positives that self-diagnose and do not certify positivity. The last plague

Omicron, the invisible positives that self-diagnose and do not certify positivity. The last plague

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Omicron, the invisible positives that self-diagnose and do not certify positivity.  The last plague

The cases Covid continue to grow but the cases not notified and those “self-diagnosed” with i go hand in hand tamponi fai da te. Because with summer just around the corner, the number of those who prefer not to certify their positivity and then manage their infection independently (however putting anyone around them at risk) is rising. To certify it is the ISS in the latest report: “In this phase, characterized by the circulation of highly transmissible Sars-CoV-2 variants, there has probably been a sharp increase in the proportion of people who have had an unreported infection to surveillance systems for reasons related to underdiagnosis or “self-diagnosis” phenomena. This could lead to the underestimation of the incidence rate, and therefore of the relative risk, and vaccination efficacy ».

Reinfections on the rise: + 9.5% in the last week

Meanwhile, the share of Italians infected with Sars-CoV-2 after having already overcome previous Covid infections. “In the last week, the percentage of reinfections out of the total reported cases was 9.5%, an increase compared to the previous week (8.4%, data with longer consolidation times than other information)”. This is what emerges from the extended report of the Higher Institute of Health on the progress of Covid-19. Overall, we read, “from 24 August 2021 to 28 June 2022, 587,347 cases of reinfection were reported, equal to 4.0% of the total number of 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 Omicron variant, highlights an increase in the adjusted relative risk of reinfection (values ​​significantly greater than 1) “in subjects with the first diagnosis of Covid-19 notified for more than 210 days, compared to those who had the first diagnosis between the previous 90 and 210 days”, remembers the Iss. Furthermore, the risk of reinfection is higher «in subjects not vaccinated or vaccinated with at least one dose for over 120 days, compared to those vaccinated with at least one dose within 120 days; in females compared to males; in the younger age groups (from 12 to 49 years), compared to people with the first diagnosis between the ages of 50-59; in health workers compared to the rest of the population “.

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For the No vax 7 times higher risk of death

People not vaccinated against Covid-19, compared to those vaccinated, run a risk of up to 7 times greater of death and up to 4 times higher of hospitalization in intensive care. This is what emerges from the extended report of the Higher Institute of Health on the trend of Covid-19 in Italy. “The age-standardized mortality rate, relating to the population aged 12 or over, in the period 6 May-5 June 2022 – we read – for the unvaccinated (13 deaths per 100,000 inhabitants) is about 4 times higher compared to vaccinated with full cycle of 120 days or less (3 deaths / 100,000) and about 7 higher than vaccinated with additional dose / booster (2 deaths / 100,000) ».

As for hospitalizations, “the age-standardized hospitalization rate, relative to the population aged 12 years or older, in the period 13 May-12 June, for the unvaccinated (57 hospitalizations per 100,000 inhabitants) is approximately 2 times higher than vaccinated with full cycle of 120 days or less (23 hospitalizations / 100,000) and more than 3 and a half times higher than vaccinated with additional dose / booster (15 hospitalizations / 100,000) ». In the same period, “the rate of admissions to intensive care according to age, relative to the population aged 12 years or older, for the unvaccinated (2 admissions to intensive care per 100,000 inhabitants) is about 2 times higher than for vaccinated with a full cycle of 120 days or less (1 hospitalization / 100,000) and about 4 times higher than those vaccinated with an additional / booster dose (1 hospitalization / 100,000) ».

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Last updated: Saturday 2 July 2022, 20:28

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