Monkey pox: why initially expired vaccines are used

“If my first vaccination comes from an expired batch, and my 2nd dose is delayed with an expired batch again, I can legitimately wonder! Ludovic, 42, received his first dose of the vaccine against monkey pox last Monday, in Brest. But when he had just entered the center, the nurse told him that the batch of vaccines used that day, P00027, was initially supposed to expire on March 21… 2017. This deadline was finally extended to 31 March 2024, after agreement from the National Medicines Safety Agency.