The Sofia 2 Flu + SARS Antigen FIA employs immunofluorescence technology in a sandwich design that is used with Sofia 2 to detect nucleocapsid protein from influenza A, influenza B, and SARS-CoV-2. This test allows for the detection of SARS-CoV and SARS-CoV-2, but does not differentiate between the two viruses.

One lot of the Sofia 2 Flu + SARS Antigen FIA (Lot 709083) was labelled with incorrect expiration dates. The kits contain pouched cassettes labeled with an expiration date of May 31, 2025, however the correct expiration date for the pouches is September 12, 2024. The kits are labeled with an expiration date of April 30, 2025, however, the correct expiration date for the kits is September 12, 2024. The issue was discovered on November 28, 2023 by a supply chain employee who determined that the kits had expiration dates beyond the FDA authorized shelf life.

On 1/3/24, correction notices were emailed to customers and distributors who were asked to do the following: 1) Complete and return the attached Confirmation of Notification form to via fax at 858.203.9297 or email at [email protected] 2) Indicate the amount of product to be replaced on the Confirmation of Notification form. You are not required to take any action related to already used kit material and can continue to use this lot number until replacement product arrives. 3) Upon receipt of the replacement product, discontinue using, render unusable and discard the remaining inventory of the affected lot. Contact Technical Support at [email protected] or by calling 800.874.1517 (in the U.S.) with any questions or concerns that you may have regarding this issue. In addition distributors were asked to do the following: Provide your list of affected customers that received this lot number. Please include a contact name, email, and phone number for each consignee. Once this list is received, the recalling firm will notify all customers on your behalf, collate responses, and facilitate replacements directly.