Sent_en: 2zh Amount of time spent in daycare and social activity, during the first year of life, were used to gauge the level of exposure of the infants to common infections such as cold and flu.
Sent_yy: 在生命的第一年中，在日托和社会活动中所花费的时间被用来衡量婴儿暴露于感冒和流感等常见感染的程度。