Ref : https://www.nbcnews.com/health/health-news/bird-flu-eggs-vaccine-poultry-usda-outbreak-rcna192781 With eggs prices at record highs, why isn't the U.S. using a bird flu vaccine in poultry?Agriculture Secretary Brooke Rollins is expected “in the coming days” to announce a new strategy to fight the escalating outbreak.www.nbcnews.com Agriculture Secretary Brooke Rollins is expected “in the co..