Although noted in the patients medical record by the family doctor Certificates were issued in accordance with international agreements. In addition to Smallpox, certificates were issued for vaccinations against Yellow Fever (10years), Cholera (6mths), Typhoid (3 years), and Polio (10 years). The figure in brackets is the effective period of the vaccination. Add measles, mumps, ruebella, hepatitus and tetanus to that lot you can understand why the population despite falling birth rates continues to grow. It is said that the Queen only sent 500 cards to people reaching their 100th birthday in the first year of her reign and that figure has grown to more than 5000 now! Mike Waterlooville