经胎盘传递的疟疾抗体对周岁内婴儿有重要的保护作用。McGregor 等在冈比亚一个高疟区研究了周岁内婴儿的抗体反应,刚出生的婴儿荧光抗体水平高,出生后头几周下降,至1岁左右再上升。为了了解孕妇及其后出生的婴儿间疟疾抗体水平的相互关系,1972年6月至1974年2月在萨尔瓦多一个间日疟为主的较低度流行区进行了检查。 Malaria antibodies delivered through the placenta have an important protective effect on infants during the first trimester of life. McGregor et al. Studied the antibody response in infancy in a high malaria area of ​​the Gambia. Infant neonates had high levels of fluorescent antibody, decreased in the first few weeks of life and then increased again after the first year of life. In order to understand the interrelationship of malaria antibody levels among pregnant women and their later infants, a low prevalence area of ​​predominantly vivax malaria in El Salvador was examined between June 1972 and February 1974.