坦桑尼亚的早期工作中也发现维它命能提高母亲血液中细胞的数量，该细胞为淋巴细胞。淋巴细胞能增加人体免疫系统抵抗感染的能力。

• The earlier work in Tanzania also found improvement in the mothers in their number of blood cells known as lymphocytes. Lymphocytes increase the body' s immunity against infection.