-fruits and vegetables they're loaded with nutrients, called antioxidants, that are good for you,the three major antioxidant vitamins are beta-carotene, vitamin C, and vitamin E. You’ll find them in colorful fruits and vegetables.
-yogurt
-garlic
-grains oats and barley
-tea ,green tea
-chicken soup
-fish
-beef
-sweet potatoes
-mushrooms
-ginger
There are also some measures to boost your immunity such as :
-Don’t smoke and alcohol
-Eat a diet rich in food mentioned above
-Exercise regularly.
-take vitamin D from sun ,expose to sun
-Maintain a healthy weight.
-Control your blood pressure.
-Get adequate sleep.
-Take steps to avoid infection, such as washing your hands frequently and cooking meats thoroughly.
-Get regular medical screening tests for people in your age group and risk category.
-drink 8-10 glasses of water
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