Some spread through FOOD handled by an INFECTED person Some spread by infected animals, e.g. TICKS and MOSQUITO Some spread through SEXUAL contact disease Examples: SMALL POX RABIES AIDS INFLUENZA COMMON COLD As the virus reproduces it destroys the CELLS that it infects, causing the SYMPTOMS of the disease Prevention Only successful protection is the PREVENTION of the infection To do this, the body’s IMMUNE system must be STIMULATED to prevent infection Vaccine Defined as: A SUBSTANCE CONTAINING WEAKENED/KILLED INJECTED TO PROVIDE IMMUNITY Only protect if used BEFORE the INFECTION Body produces ANTIBODIES that are defined as: PROTEINS THAT HELP DESTROY PATHOGENS Interferon Defined as: PROTEINS PRODUCED BY BODY’S CELLS WHEN INFECTED BY A VIRUS
Some spread through FOOD handled by an INFECTED person Some spread by infected animals, e.g. TICKS and MOSQUITO Some spread through SEXUAL contact disease Examples: SMALL POX RABIES AIDS INFLUENZA COMMON COLD As the virus reproduces it destroys the CELLS that it infects, causing the SYMPTOMS of the disease Prevention Only successful protection is the PREVENTION of the infection To do this, the body’s IMMUNE system must be STIMULATED to prevent infection Vaccine Defined as: A SUBSTANCE CONTAINING WEAKENED/KILLED INJECTED TO PROVIDE IMMUNITY Only protect if used BEFORE the INFECTION Body produces ANTIBODIES that are defined as: PROTEINS THAT HELP DESTROY PATHOGENS Interferon Defined as: PROTEINS PRODUCED BY BODY’S CELLS WHEN INFECTED BY A VIRUS
infectious_disease_key__2_.docx