HIGHLIGHTS
- who: Shanhai Ou from the University of Texas Southwestern Medical Center, United States have published the article: The duration and breadth of antibody responses to 3-dose of inactivated COVID-19 vaccinations in healthy blood donors: An observational study, in the Journal: (JOURNAL)
- how: Among 2-dose vaccinated people the data showed that the nAb half-life at the population level was about 30 days and more than 60% of individuals turned negative after 4-5 months suggesting that a booster vaccination at 3-6 months after the second dose is reasonable and necessary.

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