All open multidose vials (MDVs) can be used until the manufacturer printed expiration date.

The statement is inaccurate because, while multidose vials (MDVs) do have a manufacturer's expiration date printed on the label, this date only applies to unopened vials. Once an MDV is opened, it is subject to different storage and use protocols that should be followed to ensure the stability and efficacy of the vaccine. Each MDV comes with specific guidelines regarding how long it can be used after opening, which is typically a shorter period than the expiration date printed on the vial.

In practice, many vaccines in multidose vials must be used within a certain number of days after being opened, regardless of the expiration date. Consequently, it's vital for healthcare providers to consult the specific product information, including guidance from the Centers for Disease Control and Prevention (CDC) or the manufacturer, to determine how long an opened MDV remains viable for use.

Thus, the idea that all open MDVs can be used until the manufacturer's printed expiration date is misleading, as the timeframe once opened is generally much more limited.