Government leaders in India and Brazil have failed to adequately respond to the COVID-19 pandemic by not following scientific advice, resulting in many avoidable deaths. In India, leaders ignored warnings from scientists and became complacent when cases declined in early 2021, allowing large gatherings. They have also not provided full access to COVID-19 health data, hampering scientists' ability to analyze the situation and advise the government. This lack of action and transparency has undermined efforts to control the pandemic and reduce its human toll.