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.
Fish. Eating plenty of seafood can help improve your immune system and help your body defend itself. Fatty fish such as salmon, mackerel and tuna are rich in omega-3 fatty acids, which improve your overall health â including your heart health.Protein found in fish is also good for your body.ish. Eating plenty of seafood can help improve your immune system and help your body defend itself. Fatty fish such as salmon, mackerel and tuna are rich in omega-3 fatty acids, which improve your overall health â including your heart health.