You won't believe this but if you hunt on the internet for hours and hours you may find an interview from the actual CEO of Avacta not committing to a deadline of the 29th March. That's right the CEO of Avacta! Crazy! Best ignore him though
Affimers have many different applications as seen by all the other deals in place with third parties to use them after extensive external evaluation. The lateral flow test is just another string to the affimer bow