Ilija Čvorović je napisao:
https://www.nature.com/articles/s41586-021-03207-w
A pošto garant nećeš čitati studiju, skraćeno:
Citiraj:
Among fully vaccinated people who never had COVID-19, getting a third dose of an mRNA vaccine from Pfizer (PFE.N)/BioNTech or Moderna (MRNA.O) would likely increase levels of antibodies, but not antibodies that are better able to neutralize new virus variants, Rockefeller University researchers reported on Thursday on bioRxiv ahead of peer review. They note that in COVID-19 survivors, the immune system's antibodies evolve during the first year, becoming more potent and better able to resist new variants.
Ovo je od autora studije:
Citiraj:
People who have recovered from COVID-19 can likely mount a fast and effective response to the virus if they encounter it again because their immune system's "B cells" will remember how to make the antibodies needed to fight it, a new study shows. Researchers tracked 87 COVID-19 survivors for six months and found that while levels of antibodies to the virus may decline over time, the number of memory B cells remains unchanged. The antibodies produced by these cells are more potent than the patients' original antibodies and may be more resistant to mutations in the spike protein the virus uses to break into cells, they said. For example, they found, the antibodies could recognize and neutralize at least one of the mutations in the South African variant of the virus that has caused concern among health experts. Even if antibody levels fall, B cells will remember how to make them when necessary, according to study leader Michel Nussenzweig of Rockefeller University, whose findings were reported on Monday in Nature. If this is true at six months, as in this study, it is safe to assume it is probably still true for longer periods, he added. People who have recovered from COVID-19 "may become infected but the immune system will be prepped to fight off the infection," Nussenzweig said.
Ako ti je i ovo puno, da prevedem u jednoj rečenici: Ljudi sa prirodnim imunitetom su otporniji na novije varijante.
Pročitao sam šta si napisao, odnosno citirao, kao i letimično preletio naučni rad koji si okačio.
1. Prvi citat kaže da bi treća vakcina povećala broj antitijela, ali ne i njihov kvalitet.
2. Drugi citat govori o memorijskim B ćelijama koje su potrebne da organizam razvije nova antitijela i odreaguje na ponovnu zarazu. Nebitno da li se radi o imunitetu stečenom zarazom ili o primljenoj vakcini.
3. U naučnom radu koji si okačio, rađen je eksperiment sa 87 ljudi što nije izuzetno velik broj i uopšte se ne poredi imunitet stečen zarazom i vakcinom. Zapravo, vakcina se spominje svega jednom i to u ovoj rečenici:
Citiraj:
Memory responses are responsible for protection from reinfection and are essential for effective vaccination.
Izvoli, pa ponovo probaj objasniti koji izvor imaš za tvrdnju da je imunitet stečen zarazom bolji od imuniteta stečenog vakcinacijom. Sve ovo što si do sad okačio je da prostiš...