; and (ii) are caused by a public health emergency during the period of leave. (C) The employer makes reasonable efforts to restore the employee to a position equivalent to the position the employee held when the leave commenced, with equivalent employment benefits, pay, and other terms and conditions of employment. (D) If the reasonable efforts of the employer under subparagraph (C) fail, the employer makes reasonable efforts during the period described in paragraph (3) to contact the employee if an equivalent position described in subparagraph (C) becomes available. (3) Contact period The period described under this paragraph is the 1-year period beginning on the earlier of— (A) the date on which the qualifying need related to an infectious disease concludes