'Use it or lose it!' Biden warns states he will send their unused vaccines to parts of the country that want them – as daily vaccination rates drop to their lowest point since February The White House told governors that states who do not use their full vaccination allocation will be redistributed to other states where they are in higher demand The first vaccine distribution change since Biden took office is to help deal with supply and demand for the shot in different areas of the country In recent weeks, many states like Iowa and Arkansas have seen large amounts of doses not being distributed