Which of the following is the best example of a reason to seek emergency medical for someone who experiences vomiting? a. the person vomits when she has been exposed to a virus at school. b. the person vomits frequently. c. the person is worried about losing weight. d. the person is embarrassed after vomiting once.

What is difference between an epidemic and a pandemic? a) an epidemic is a disease; a pandemic is a treatment.b) an epidemic is restricted to a local region; a pandemic is global.c) an epidemic has low mortality; a pandemic has higher mortality.d) an epidemic is caused by a bacterial infection; a pandemic is caused by a viral infection.