| http://www.w3.org/ns/prov#value | - Young children are particularly prone to colds because they have not had a chance to build up immunity to the many viruses that cause colds.Tr??? em ?????c bi???t d??? b??? c???m l???nh b???i v?? ch??ng ch??a c?? ????? ???c?? h???i??? ????? ph??t tri???n h??? mi???n d???ch ch???ng l???i nhi???u lo???i vi-r??t g??y c???m l???nh.
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