Should the CDC Oversee Vaccine Safety When They Purchase Over $5 Billion of Vaccines from Big Pharma?

The U.S. Centers for Disease Control and Prevention (CDC) is tasked by the U.S. Government with overseeing vaccine safety. They claim on their website: "The United States’ long-standing vaccine safety program closely and constantly monitors the safety of vaccines. A critical part of the program, CDC’s Immunization Safety Office identifies possible vaccine side effects and conducts studies to determine whether health problems are caused by vaccines. Data show that the current U.S. vaccine supply is the safest in history." However, the CDC is the largest purchaser of vaccines in the world, and their budget to purchase vaccines from pharmaceutical companies was over $5.1 BILLION in 2018, and is set to increase to over $5.4 BILLION in 2019. Can we trust the CDC to oversee vaccine safety with such a blatant conflict of interest?