Jeffrey received his Ph.D. in 2002 in organismic and evolutionary biology from Harvard University, under the advisement of Daniel Hartl. His Ph.D. was entitled "Population genetic variation in genome-wide gene expression: modeling, measurement, and analysis", and constituted the first population genetic analysis of genome-wide gene expression variation.
New research led by scientists at Yale University and the University of North Carolina at Charlotte finds that the rate at which additional COVID-19 boosters
These results are based on a typical patient with a typical immune response receiving common therapies. It remains the case that every patient may have mitigating factors that doctors must consider when advising whether and when an additional COVID-19 booster schedule may be appropriate.