As for the total number of positive cases among the vaccinated, updated data as of April 30 — the CDC later decided to record only hospitalizations — shows a total of 10,262 “breakthrough” cases in which Covid “punctured” the vaccine’s defenses. At the peak of the epidemic in January 2021, daily infections were more than 200,000 per day, so Covid cases among vaccinators are a small percentage. The Centers for Disease Control and Prevention (CDC) acknowledges that the data can be underestimated because many vaccinated people, especially if they do not develop symptoms, do not get tested. But the sharp drop in the number of infections is a reality.
In California, only 62 deaths among the vaccinated
Among the US states, California emphasizes the national trend. In fact, only 7,550 are positive out of the more than 19.5 million Californians who have been fully vaccinated. The proportion of infections among those who had completed the course of immunization as of June 23 was 0.039%, which is equivalent to one case for every 2,583 people vaccinated. Most infections were mild, while deaths among those vaccinated were only 62, according to data from the California Department of Public Health.
Ontario: only 0.02% of infections among vaccinators
Another very in-depth study conducted by the Canadian state of Ontario. From the start of the COVID-19 vaccination program on December 14, 2020 through June 12, 2021, 9.4 million Toronto residents have received at least one dose. Of these, only 0.15% (14,293 individuals among asymptomatic and asymptomatic cases) were infected when partially vaccinated and only 0.02% (1,648 individuals) became infected when fully vaccinated.
Most (53.1%) of the identified post-vaccination cases were not yet protected when they became infected, as the date of onset of symptoms was between 0 and 14 days after the administration of the first dose. Post-vaccination cases decrease dramatically over time. A significant decrease in infection was observed starting from 28 days after the first dose and up to more after the second.
Data from Lombardy
Partial data from Italian regions also confirm the picture already analyzed in North America. Let’s take Lombardy: according to a report by DG Welfare, in the January-June period, 87.2% of those infected were not vaccinated; He was vaccinated with the first dose at 8.1% and the complete course at 4.7%. “In any case – concludes the regional document – vaccination coverage significantly reduces the risk of infection and in any case the disease can develop dangerously. In particular, after completion of the vaccination course and 14 days after the second and last administration, the response to the vaccine is roughly the same for all variants.