(A) After the declaration of a public health emergency, DPH may purchase and distribute antitoxins, serums, vaccines, immunizing agents, antibiotics, and other pharmaceutical agents or medical supplies that it considers advisable in the interest of preparing for or controlling a public health emergency, without any additional legislative authorization. (B)(1) If a state of public health emergency results in a statewide or regional shortage or threatened shortage of any product covered by subsection (a), whether or not such product has been purchased by DPH, DPH may control, restrict, and regulate by rationing and using quotas, prohibitions on shipments, price fixing, allocation or other means, the use, sale, dispensing, distribution, or transportation of the relevant product necessary to protect the health, safety, and welfare of the people of the State. In making rationing or other supply and distribution decisions, DPH must give preference to healthcare providers, disaster response personnel, and mortuary staff. (2) During a state of public health emergency, DPH may procure, store, or distribute any antitoxins, serums, vaccines, immunizing agents, antibiotics, and other pharmaceutical agents or medical supplies located within the State as may be reasonable and necessary for emergency response, with the right to take immediate possession thereof. (3) If a public health emergency simultaneously affects more than one state, nothing in this section shall be construed to allow DPH to obtain antitoxins, serums, vaccines, immunizing agents, antibiotics, and other pharmaceutical agents or medical supplies for the primary purpose of hoarding such items or preventing their fair and equitable distribution among affected states.