Insulin tablets were erroneously used on multiple occasions in a VA hospital , memo says . Shared items may have exposed 716 veterans to hepatitis B , vitamin C and HIV . `` Beyond the fact that the error occurred at all , most concerning was the length of time it took the Buffalo VA to catch the error -- over two years , as well as the three-month delay in informing patients who may have been exposed , '' Higgins , whose district includes the city of Buffalo , wrote in a letter to the VA on Monday . ` Incorrect testing lasted from October 2011 to November 2012 , memo says .
Insulin tablets were erroneously used on multiple occasions in a VA hospital , memo says . Shared items may have exposed 716 veterans to hepatitis B , vitamin C and HIV . Incorrect testing lasted from October 2011 to November 2012 , memo says .