Nov 25, 2021
- A new study looked at more than 80,000 adults who were fully vaccinated with the Pfizer-BioNTech vaccine
- The percentage of tests that came back positive increased from 1.3% prior to 90 days to of 2.4% 90 to 119 days later, to 10.3% 150 to 179 days later
- Risk of infection was 2.37-fold higher between 90 and 119 days after completing the vaccine series compared to the initial 90 days
- This increased to a 2.82-fold increased risk 180 days or more after receiving the second dose
- Researchers say the findings show booster shots are likely needed to sustain long-term protection from Covid
(Is this covid, or vaccine Adverse effect?)