There seems to have been an update
Following the link provided by Daffodil, down as far as "What You Need To Do" and choosing the option" Entering the UK from an unlisted non-EU country" (see which countries are unlisted)
The following steps are listed:
...
What you need to do if you are entering the UK from unlisted non-EU countries
Preparing your dog, cat or ferret
... Step 1 - Have your pet microchipped - Before any of the other procedures for pet travel are carried out, your pet must be fitted with a microchip so it can be properly identified.
... Step 2 - Have your pet vaccinated - After the microchip has been fitted your pet must be vaccinated against rabies. There is no exemption to this requirement, even if your pet has a current rabies vaccination. Rabies boosters must be kept up to date.
... Step 3 - Arrange a blood test - After your pet has been vaccinated, it must be blood tested to make sure the vaccine has given it a satisfactory level of protection against rabies. The blood sample must be taken at least 30 days after vaccination. The length of the waiting period before entry to the UK is three calendar months from the date your vet took the blood sample which led to a satisfactory test result. The three month waiting period will not apply if your pet was vaccinated and blood tested in the EU and issued with an EU pet passport before it went to an unlisted country.
... Step 4 - Get pet travel documentation -You will need to obtain an official third country veterinary certificate.
... Step 5 - Tapeworm treatment- (dogs only): before entering the UK, all pet dogs (including assistance dogs) must be treated for tapeworm. The treatment must be administered by a vet not less than 24 hours and not more than 120 hours (1-5 days) before its scheduled arrival time in the UK. There is no mandatory requirement for tick treatment. No treatment is required for dogs entering the UK from Finland, Ireland or Malta).
... Step 6 - Arrange for your animal to travel with an approved transport company on an authorised route - Your pet must enter the UK with an approved transport company on an authorised route.
This page is shown as last modified 19th January 2011My reading of these rules is that the preparation process will take at least four months to complete ( Vaccination plus 30 days then Blood Test with satisfactory result then 3 calendar months waiting period ) .Then travel, and entry will be allowed,
and quarantine after arrival is not required.http://www.defra.gov.uk/pets