It takes about two days to get a cold after exposure to the virus. In this video, Larry Gooss, DO, a family practice doctor at Chippenham & Johnston-Willis Hospitals, explains how virus can continue to live on surfaces.
A RealAge answered. To prevent vitamin C deficiency, government guidelines recommend a daily dose of 90 milligrams (mg) for men, 75 mg for women. We recommend that you get 1,200 mg of vitamin C per day from food and supplements. This higher amount not only prevents deficiency but also helps prevent disease and needless aging.
Adults should get between 75 and 90 milligrams of vitamin C per day; several glasses of water with lime juice can provide a significant percentage of this guideline. According to the National Institutes of Health, a regular intake of vitamin C might lessen your risk of cancer.