; (ii) an air carrier contractor; (iii) an airport; or (iv) the Federal Government; and (B) an air traffic controller or systems safety specialist of the Federal Aviation Administration. (2) Covered communicable disease The term covered communicable disease means a communicable disease that has the potential to cause an epidemic or pandemic of infectious disease that would constitute a public health emergency of international concern as declared by the Secretary of Health and Human Services under section 319 of the Public Health Service Act ( 42 U.S.C. 247d ).