Group 1 - President Trump called on pharmaceutical companies to justify the success of their Covid drugs, emphasizing the need for transparency in their results [2][5] - The FDA approved new Covid vaccines, but limited their availability to individuals at higher risk of severe illness [2][4] - The leadership changes at the CDC, including the firing of Director Susan Monarez, reflect ongoing tensions regarding U.S. immunization policies and the management of federal health agencies [3][4] Group 2 - Trump expressed frustration over the lack of public disclosure of extraordinary results from companies like Pfizer, questioning why these results are not shared [4] - The recent upheaval at the CDC includes mass firings and significant changes to vaccine policy, indicating a shift in the federal approach to public health [4]