A. Early symptoms of the illness are much like the flu. After a short time (in some cases a day or two), more severe pneumonia-like symptoms may appear. Not all individuals with Legionnaires' disease experience the same symptoms. Some may have only flu-like symptoms, but to others the disease can be fatal.
2) Foods High in Vitamin E. Like vitamin C, vitamin E is a powerful antioxidant. Research suggests maintaining ample levels of vitamin E is crucial for maintaining a healthy immune system, especially among older people. To get your fill of vitamin E, look to these foods: wheat germ oil.
Vitamin A also increases the ability of antibodies to respond to invaders. People who eat more garlic have more natural killer white blood cells. Other helpful foods include chicken, kale, almonds, guava, crab, dark grapes and navy beans. Supplements can play a big role in boosting immune function and white blood cell counts.