They are home to some of the most effective antioxidants in foods also, which helps protect the eyes and heart and helps fight off cancer. LeeksLeeks are rich in manganese, which is an important mineral that was found to prevent feeling swings and menstrual cramps in ladies who took high amounts of it regularly. Not only that, leeks help prevent and relieve bloating also. SalmonSalmons of all kinds are abundant with heart-friendly omega-3, and also vitamin D. Bones in canned or processed salmon are abundant with calcium also.Verani, M.D., M.P.H., Katherine L.D., M.P.H., Cynthia G. Whitney, M.D., M.P.H., Keith P. Klugman, M.B., B.Ch., Ph.D., and Cheryl Cohen, M.B., B.Ch. For the GERMS-SA Investigators: Ramifications of Vaccination on Invasive Pneumococcal Disease in South Africa The majority of deaths associated with childhood pneumococcal disease occur in Africa.1,2 In randomized trials conducted in Africa,3,4 a pneumococcal conjugate vaccine was given to infants if they were 6, 10, and 14 weeks of age, without a booster dosage. The vaccine showed efficacy for preventing invasive pneumococcal disease due to the nine serotypes within the vaccine among infants who were not infected with the human immunodeficiency virus and among infants who were infected with HIV .3,5 In 2009 2009, South Africa became the first African country to incorporate vaccination with PCV in its routine infant immunization program.6 The 7-valent PCV was introduced with the use of a novel three-dose routine, with two primary dosages, given to infants at 6 and 14 weeks old, and a booster provided at 9 months old.