Which of the Following Statements Are True of Infections and Disease

Which of the following statements are true of infections and disease (Select all that apply) ?

A) An endogenous infection is one that is acquired in a hospital or other institution.
B) A person who has recovered from a disease but remains a source of the pathogen is considered a carrier.
C) When influenza is followed by bacterial pneumonia,the pneumonia is considered a secondary infection.
D) A zoonosis is a disease that affects only wild animals.
E) The "AIDS epidemic" is really the "AIDS pandemic."
F) Septicemia is a systemic infection,and is always serious.