Looking at the Tourist Visa requirements for Ghana (for a UK Citizen) it states that the Yellow Fever vaccination must be within the last 10 years. My Yellow Fever vaccination was in 2012 and my certificate gives an expiry date of 2022. I know that Yellow Fever vaccinations now last for the life of the patient. Will I have issues if I use my "expired" certificate when I apply for the visa? I have tried to email the Ghana High Commission, but have had no reply.