New study shows that boosters are affective for 10 weeks.
https://www.nytimes.com/2021/12/23/health/booster-protection-omicron.html
https://www.cnbc.com/2021/12/21/omicron-expert-why-covid-vaccine-booster-shots-are-so-important.html
https://www.businessinsider.com/how-long-does-booster-protection-omicron-covid-last-study-2021-12