Consequently, I cannot provide the most current data on the exact amount of flu vaccine that the US government usually buys.
The amount of flu vaccine purchased by the US government can vary from year to year based on several factors, including the projected demand, the severity of the flu season, the target population for vaccination, and the availability of vaccines from different manufacturers.
The US Centers for Disease Control and Prevention (CDC) typically collaborates with vaccine manufacturers to estimate the number of doses needed for each flu season. They then work to distribute these vaccines to various healthcare providers, public health departments, and other channels to ensure widespread access to flu vaccinations.
For the most up-to-date information on the quantity of flu vaccine purchased by the US government or any other specific details related to the flu vaccination program, I recommend checking the official website of the CDC or other reputable sources that provide current public health information.