Infectious Diseases Unit 7 Infectious Diseases Definition INFECTIOUS

Infectious Diseases Unit 7: Infectious Diseases

Definition INFECTIOUS DISEASE – ANY DISEASE THAT IS CAUSED BY AN AGENT THAT HAS INVADED THE BODY. COMES FROM ANOTHER PERSON, FOOD AND WATER, ANIMALS OR SOMETHING IN THE ENVIRONMENT

PATHOGEN – ANY AGENT THAT CAUSES DISEASE DIFFERENT TYPES OF PATHOGENS 1. ) BACTERIA- SINGLE-CELLED ORGANISMS. EXSINUS INFECTIONS, TB. CAN TAKE ANTIBIOTICS TO MAKE BETTER!!!

2. ) VIRUSES – SMALLER THAN BACTERIA. THEY HAVE THEIR OWN GENETIC MATERIAL AND USE YOUR CELLS TO MAKE MORE OF THEM!! EX – FLU, MEASLES, AIDS. YOU DO NOT TAKE ANTIOBIOTICS TO GET RID OF THESE!!!! IT HAS TO GO THROUGH THE CYCLE OR IT STAYS IN THE BODY. YOU CAN GET VACCINATIONS FOR THEM AND THE BODY REMEMBERS THE CODE AND THEN IT CAN FIGHT IT OFF IF IT COMES IN CONTACT WITH THAT PARTICULAR VIRUS!!

3. ) FUNGI – ORGANISMS THAT USE DEAD OR LIVING MATERIAL TO LIVE. EX – ATHLETE’S FOOT, RINGWORM, YEAST INFECTION WEAR SHOWER SHOES, DON’T DOUCHE 4. ) PROTOZOAN’S – BIGGER THAN BACTERIA BUT LEAD TO ABOUT 1 MILLION DEATHS A YEAR. EX – MALARIA KEEPING CLEAN -- HELPS PREVENT. 5. ) PARASITES – LIVE OFF LIVING THINGS. EX – HEAD LICE, TAPEWORMS DON’T SHARE COMBS, HATS.

Tuberculosis and Strep Throat Bacteria

Malaria and Measles. Virus Protozoan

Head Lice and Tape Worm Parasite

Athlete’s Foot and Ring Worm Fungi