What is unusual about the immune response to diseases like bovine spongiform encephalopathy? a. it is very fast c. it only involves passive immunity b. no antibodies are produced in response to the infectious agent d. it involves both primary and secondary immunity

What kind of wound occurred when the skin scrapes against a hard surface and tiny blood vessels break in the outer layer of skin

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.

Why is important to keep your health triangle balanced?