Pentru cât timp oferă imunitate vaccinurile împotriva COVID-19? Vorbim de o estimare de cel puțin un an, dar nu există o perioadă dovedită științific

Individuals aged >=80 years vaccinated with BNT162b2 prior to 4th January, had a higher odds of testing positive in the first 9 days after vaccination (odds ratio up to 1.48, 95%CI 1.23-1.77), indicating that those initially targeted had a higher underlying risk of infection. Vaccine effectiveness was therefore estimated relative to the baseline post-vaccination period. Vaccine effects were noted from 10-13 days after vaccination, reaching an effectiveness of 70% (95% CI 59-78%) from 28-34
days, then plateauing. From 14 days after the second dose a vaccine effectiveness of 89% (95%CI:
85-93%) was seen.
Individuals aged >=70 years vaccinated from 4
th January had a similar underlying risk of COVID-19 to
unvaccinated individuals. With BNT162b2, vaccine effectiveness reached 61% (95%CI 51-69%) from
28-34 days after vaccination then plateaued. With the ChAdOx1 vaccine, vaccine effects were seen
from 14-20 days after vaccination reaching an effectiveness of 60% (95%CI 41-73%) from 28-34 days
and further increasing to 73% (95%CI 27-90%) from day 35 onwards.
On top of the protection against symptomatic disease, cases who had been vaccinated with one
dose of BNT162b2 had an additional 43% (95%CI 33-52%) lower risk of emergency hospitalisation
and an additional 51% (95%CI 37-62%) lower risk of death. Cases who had been vaccinated with one
dose of ChAdOx1 had an additional 37% (95% CI 3-59%) lower risk of emergency hospitalisation.
There was insufficient follow-up to assess the effect of ChAdOx1 on mortality due to the later rollout
of this vaccine. Combined with the effect against symptomatic disease, this indicates that a single
dose of either vaccine is approximately 80% effective at preventing hospitalisation and a single dose
of BNT162b2 is 85% effective at preventing death with COVID-19.

Am auzit ca tine pana iesi din centrul de vaccinare ceea ce matematic e o imbunatatire fata de zero.
In cazuri izolate a tinut chiar pana la resedinta subiectului unde din pacate, din nenorocire, era o vecina care avea o alta tulpina mai nene. Avea o tulpina de rododendron care practic a dat peste cap studiul savantilor britanici.

Vorbim de o estimare, aproximativ-relativa........caci nu există o perioadă de eficacitate dovedită științific!!!!
In schimb, vaccinurile au fost aprobate pe "repede inainte", in procesul de evaluare si aprobare, fara sa se determine perioada lor eficacitate!
Testele pe populatie se fac in prezent, la scara globala!
Va recomand un film edificator (sic) pe Netflix: The constant gardener!

Măcar 24 de luni sa fie, dar nu cred ca avem noi norocul ala. Deci tovarăși, sa va lucrați umerii, aveti de primit shot-uri fata număr.