补充一下我想说的是这段 What Are "5-in-1" and "6-in-1" Vaccines? These newer childhood vaccine formulations combine vaccines against 5 or 6 diseases into a single injection. These combination vaccines have been proved to be safe and effective. However, do take note that the cost of 5-in-1 and 6-in-1 vaccines are not subsidised by the government. Consult your family doctor for more information on 5-in-1 and 6-in-1. 所以这些疫苗本身就比较贵，又没政府补贴，自然就贵了， 好处当然是省事及小宝可以少打几针