疫苗为生物制品,是预防疾病的一种药品。由于它的活性和效价的不稳定性,一般需低温保存。在一些基层单位,由于经费所限,没有冰箱等低温设备,造成疫苗效价降低或失效,赣榆曾发生在疫苗接种点为小儿注射失效疫苗现象。一些有价疫苗如狂犬疫苗、乙肝疫苗等经营渠道混乱,药品质量无保证。甚至有的单位和个人竞在无冷藏的情况下,上门到卫 Vaccine for biological products, is a drug to prevent disease. Due to its activity and potency instability, it is generally required to be stored at low temperature. In some grassroots units, due to funding constraints, there is no low-temperature refrigerators and other equipment, resulting in reduced or invalidate vaccine potency, Ganyu has occurred at the vaccination point for the injection of vaccination failure in children. Some valuable vaccines such as rabies vaccine, hepatitis B vaccine and other operating channels chaos, drug quality is not guaranteed. Even some units and individuals competing in the absence of refrigeration, come to Wei