是如下的發表的:
All mothers should have access to skilled support to initiate and sustain exclusive breastfeeding for 6 months and ensure the timely introduction of adequate and safe complementary foods with continued breastfeeding up to two years or beyond.
"up to two years or beyond" 就是"達至2年或超過", 因此世衛是建議母親應餵哺至寶寶達2歲或以上.