Kleintje66 schreef op 3 april 2021 18:48:
[...]
Er valt wel wat over te zeggen.
Among unvaccinated participants, 1.38 SARS-CoV-2 infections were confirmed by reverse transcription–polymerase chain reaction (RT-PCR) per 1,000 person-days.§ In contrast, among fully immunized (=14 days after second dose) persons, 0.04 infections per 1,000 person-days were reported, and among partially immunized (=14 days after first dose and before second dose) persons, 0.19 infections per 1,000 person-days were reported.
Estimated mRNA vaccine effectiveness for prevention of infection, adjusted for study site, was 90% for full immunization and 80% for partial immunization. These findings indicate that authorized mRNA COVID-19 vaccines are effective for preventing SARS-CoV-2 infection, regardless of symptom status, among working-age adults in real-world conditions. COVID-19 vaccination is recommended for all eligible persons.
Mensen die gevaccineerd zijn worden dus veel minder vaak besmet en dus (als groep) zullen ze ook veel minder besmettelijk zijn. Mensen die niet besmet raken zullen het virus zelf ook niet actief verspreiden.