; and (ii) any reference to ventilator capacity shall be treated as a reference to medical equipment and supplies critical to the infectious disease outbreak, including ventilator capacity. (C) Infectious disease outbreak defined For purposes of subparagraph (B), the term infectious disease outbreak means any of the following periods: (i) COVID- 19 emergency period The emergency period described in section 1135(g)(1)(B) of the Social Security Act ( 42 U.S.C. 1320b–5(g)(1)(B) ). (ii) Other infectious disease outbreak periods (I) The period beginning on the date a nationwide emergency related to a public health emergency is declared pursuant to the Stafford Act, a Major Disaster Declaration, or the National Emergencies Act and ending on the date that is 6 months after the date on which the declaration pursuant to the Stafford Act, a Major Disaster Declaration, or the National Emergencies Act, as applicable, ends, whichever is the latest. (II) The period during which there exists a public health emergency related to an infectious disease outbreak declared by the Secretary pursuant to section 319 of the Public Health Service Act. (III) With respect to a skilled nursing facility in a State with respect to which the Governor has declared an emergency or major disaster (as defined by the State) with respect to an infectious disease outbreak, the period for which such declaration is in effect with respect to such State. . (2) Medicaid Section 1919(d)(3) of the Social Security Act ( 42 U.S.C. 1396r(d)(3) ) is amended— (A) by redesignating subparagraphs (A) and (B) as clauses (i) and (ii), respectively, and moving such clauses 2 ems to the right; (B) by striking environment.— A nursing facility must— and inserting environment.— (A) In general A nursing facility must—