States Commissioned Corps, and other preparedness and response activities: Provided , That funds appropriated under this paragraph in this title may be used to develop and demonstrate innovations and enhancements to manufacturing platforms to support such capabilities: Provided further , That the Secretary of Health and Human Services shall purchase vaccines developed using funds made available under this paragraph in this title to respond to an outbreak or pandemic related to coronavirus in quantities determined by the Secretary to be adequate to address the public health need: Provided further , That products purchased by the Federal Government with funds made available under this paragraph in this title, including vaccines, therapeutics, and diagnostics, shall be purchased in accordance with Federal Acquisition Regulation guidance on fair and reasonable pricing: Provided further , That the Secretary may take such measures authorized under current law to ensure that vaccines, therapeutics, and diagnostics developed from funds provided in this title will be affordable in the commercial market: Provided further , That in carrying out the previous proviso, the Secretary shall not take actions that delay the development of such products: Provided further , That the Secretary shall ensure that protections remain for individuals enrolled in group or individual health care coverage with pre-existing conditions, including those linked to coronavirus: Provided further , That products purchased with funds appropriated under this paragraph in this title may, at the discretion of the Secretary of Health and Human Services, be deposited in the Strategic National Stockpile under section 319F–2 of the Public Health Service Act: Provided further , That of the amount appropriated under this paragraph in this title, not more than $2,000,000,000 shall be for the Strategic National Stockpile under section 319F–2(a) of such Act: Provided further , That funds appropriated under this paragraph in this title may be transferred to,