White blood cells- (leukocytes) do the work of protecting your body against invaders
Phagocytes- roam through your tissues and body cavities, engulfing and disposing of any bacteria, viruses, and cellular debris they encounter
Histamine- causes the blood vessels to dilate and become more permeable
Interferon- tells nearby uninfected cells to produce antiviral compounds that protect them from becoming infected by the virus
Antibodies- Y shaped protein molecules that act like molecular homing missiles