临床上儿科医生将每年患７次以上感冒的儿童称为反复感儿,即反复感染的儿童。医学研究发现,儿童反复发生上呼吸道感染的原因,是患儿体内淋巴细胞功能不良。因为淋巴细胞的主要功能是产生免疫球蛋白,所以淋巴细胞功能低下必然导致免疫功能低下。近年来,临床发现甲氰咪胍可以调节 Clinically, pediatricians refer to children who suffer from colds more than 7 times a year as recurrent infants, ie, children who are repeatedly infected. Medical research found that recurrent upper respiratory tract infection in children is due to dysfunction of lymphocytes in children. Because the main function of lymphocytes is the production of immunoglobulins, poor lymphocyte function inevitably leads to poor immune function. In recent years, clinically found that cimetidine can be adjusted