If both beta globin genes code for the sickle protein, the person has sickle cell disease. Sickle cell disease is determined at conception, when a person acquires his/her genes from the parents. Sickle cell disease cannot be caught, acquired, or otherwise transmitted.
For every year of the cat's life after age 2, one cat year equals approximately 4 human years. This is based on how cats mature - for example at around 10 - 11 human years most cats start to slow down quite a lot... This is when they're getting to about 60 years old in Kitty terms.
Cat life expectancy. Cats have been documented to live over 30 years. In the Guinness Book of World Records, the oldest cat is 34-36 years old. In human years, a 30-year-old cat is over 130, and a 34-36-year-old cat is between 150-160. In Scotland, a cat is reported to have lived to be over 40 years old.