In a randomized, placebo-controlled, double-blind trial, 400 women will receive a high dose of vitamin A (200.000 IU) within 6 weeks of delivery, as recommended by WHO. Half of the women will receive the vitamin A directly after delivery (within 3 days, current practice), whereas the other women will receive the vitamin A 6 weeks after delivery. To guarantee blinding, women will receive a placebo capsule if they are not receiving a vitamin A capsule.