DISEASECAUSED BY MICROORGANISMS IN HUMANS

DISEASE•DOES NOT ALLOW THE BODY TO FUNCTION NORMALLY•CAN AFFECT INDIVIDUAL ORGANS OR AN ENTIRE BODY SYSTEM•DIVIDED INTO TWO GROUPS –INFECTIOUS AND NON-INFECTIOUS

INFECTIOUS DISEASE•A DISEASE THAT CAN BE PASSED FROM ORGANISM TO ORGANISM• CAUSED BY TINY ORGANISMS CALLED PATHOGENS

4 KINDS OF PATHOGENS

•BACTERIA•VIRUSES•FUNGI•PROTIST

PATHOGENS CAN COME FROM•ANOTHER PERSON

•CONTAMINATED OBJECTS

•ANIMAL BITE

•ENVIRONMENT

IMMUNE SYSTEM RESPONSIBLE FOR•DISTINGUISHING (TELLING THE DIFFERENCE) BETWEEN THE DIFFERENT KINDS OF PATHOGENS•REACTING TO EACH KIND ACCORDING TO ITS TYPE

WHEN A PATHOGEN ENTERS THE BODY•IT WORKS BY DAMAGING INDIVIDUAL CELLS WITHIN THE ORGANS•IN SOME CASES IT ATTACKS AN ENTIRE BODY SYSTEM

SOME INFECTIOUS DISEASES YOU SHOULD

KNOW•COLDS•FLU•STREP THROAT•ATHLETE’S FOOT•AIDS

COLD•ILLNESS CAUSED BY A VIRAL INFECTION LOCATED IN THE RESPIRATORY SYSTEM•THE COLD VIRUS MULTIPLIES AND ATTACKS THE MUCOUS MEMBRANES OF THE NOSE AND THROAT CAUSING THE COMMON EFFECTS OF THE COLD (SORE THROAT, RUNNY NOSE, FEVER…)•COLD CAN NOT BE TREATED WITH AN ANTIBIOTIC BECAUSE IT IS CAUSED BY A VIRUS

FLU•INFLUENZA, COMMONLY KNOWN AS “THE FLU”, IS A HIGHLY CONTAGIOUS VIRAL DISEASE OF THE RESPIRATORY SYSTEM•TYPICALLY CAUSES FEVER, MUSCLE ACHES, AND A MORE SEVERE COUGH THAN THE COMMON COLD AND USUALLY LASTS LONGER

ATHLETE’S FOOT•COMMON FUNGAL INFECTION OF THE SKIN OF THE FEET•MAY BE CONTRACTED FROM PUBLIC ENVIRONMENTS •GROWS IN THE WARM AND MOIST ENVIRONMENT USUALLY BETWEEN THE TOES•DIFFICULT TO CURE

AIDS•ACQUIRED IMMUNODEFICIENCY SYNDROME (AIDS)•CAUSED BY THE HUMAN IMMUNODEFICIENCY VIRUS (HIV)•THE VIRUS ATTACKS THE CELLS IN THE IMMUNE SYSTEM MAKING THE ORGANISM UNABLE TO FIGHT OFF OTHER PATHOGENS THAT MAY ATTACK THE BODY

STREP THROAT•CONTAGIOUS DISEASE CAUSED BY BACTERIAL INFECTION•SYMPTOMS INCLUDE FEVER, PAIN, REDNESS AND SWELLING OF THE THROAT AND TONSILS•MAY PRODUCE MILD OR SEVERE SYMPTOMS

ASTHMA•AFFECTS THE LUNGS AND THE AIRWAYS THAT DELIVER AIR TO THE LUNGS•CAUSES PERIODIC ATTACKS OF WHEEZING AND DIFFICULTY BREATHING