That the following sums are appropriated, out of any money in the Treasury not otherwise appropriated, for the fiscal year ending September 30, 2020: Department of Health and Human Services Office of the Secretary public health and social services emergency fund (including transfer of funds) For an additional amount for Public Health and Social Services Emergency Fund , $29,000,000,000, to remain available until September 30, 2024, to prevent, prepare for, and respond to coronavirus, domestically or internationally, including the development of necessary countermeasures and vaccines, prioritizing platform-based technologies with United States-based manufacturing capabilities, the purchase of vaccines, therapeutics, diagnostics, necessary medical supplies, as well as medical surge capacity, addressing blood supply chain, workforce modernization, telehealth access and infrastructure, initial advanced manufacturing, novel dispensing, enhancements to the United States Commissioned Corps, and other preparedness and response activities: Provided , That funds appropriated under this paragraph in this Act 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 Act 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 Act, 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 Act will be