Fact I 02 Differences of first exposure to micro rganism between vaginally delivered infants and c-section delivered ones 01 >Vaginally delivered: birth canal >C-section delivered: skin of parents and health providers, medical equipment01 Fact I •Differences of first exposure to micro￾organism between vaginally delivered infants and C-section delivered ones. Vaginally delivered: birth canal; C-section delivered: skin of parents and health providers, medical equipment. 02