Scurvy? No, more like hunger, and vitamin D deficiency (from lack of exposure to the sun?). Ancient sailors struggled to get sufficient vitamin C, which is what led to scurvy.
Yes they did. They added limes to their diet. Because of this, sailors are called "Limeys". This was because of the defieciency of the vitamin C in their diet. See the related link for more information.
Sailors believed the touch of earth could cure scurvy before they realized that Vitamin C would prevent it.
No. But there are several treatments, ranging from sunscreens and vitamin C (for minor cases) to corticosteroids and retinoids (for severe cases).
Jaques Cartier got a disease called scurvy caused by a lack of vitamin C. The needles and bark of white cedar vitamin C. It was many years before Europeans understood how to cure scurvy. The aboriginals helped Jaques Cartier when he arrived in North America and cured scurvy with lime. Back then sailors called it limeys but in this time it is called limes.
Sadly, there is no cure to Wilson's disease. : (
Fibromyalgia is not a vitamin, it is a disease. It is an autoimmune disease that causes inflammation of the joints. There is no cure and doctors do not know what causes a person to develop it. It causes chronic pain, so no, it's not good for you.
How do you cure Rickets disease? Rickets can have several causes, and the cure depends on the cause. The most common cause is lack of vitamin D, which the body needs to use calcium correctly. Vitamin D can be obtained through diet (vitamin tablets or vitamin D rich foods such as butter, eggs, oily fishes, fortified milk) or sun exposure (the body actually makes this vitamin when the skin is exposed to sunlight!) Lack of calcium itself can also cause rickets. Increasing calcium in the diet would help here (dairy products, especially). There are other rare metabolic causes of rickets which would need individualized medical intervention to treat.
Unfortunately, there is no known cure for osteoporosis. You can help treat and prevent it by taking calcium, vitamin D, eating healthy, and exercising regularly. http://osteoporosis.emedtv.com/osteoporosis/cures-for-osteoporosis.html
There is no cure for Marek's disease - this is a cancer caused by a virus.
A vaccine is a form of disease prevention, not a cure for a disease.
Vitamin A is used to cure night blindness.
Hemost certainly knew that vitamin C rich foods fruits were good for scurvey, but he was dead for 20 years before lemons and limes started being given to sailors.