Defense against Disease. Physical and Chemical Defenses. Skin- Both a physical and chemical barrier. Sweat contains acids that kill many bacteria. Skin cells shed constantly and pathogens on those skin cells shed with them.
Cilia- Tiny hair like projections. Line mucous membranes. Ex. Breathing in dust.
III. Bacterial Meningitis: Infection of the spinal cord and the fluid that surrounds the brain. Symptoms: high fever, headache, vomiting, and stiff neck.
IV. Tuberculosis (TB): Transmitted when droplets of an infected persons cough or sneeze are inhaled. Symptoms: Fatigue, mild fever, and a constant cough. The disease may not show up for years after contraction.
Pneumonia: People who have heart disease or are elderly may experience their flu turn into pneumonia.
Type A: Transmitted through human wastes or contaminated water.
Type B: More severe then type A. Transmitted through blood or sexual contact.
Type C: Transmitted through blood or sexual contact. Type C is the number one reason for liver transplants in the U.S