18.3 viral diseases key concept some viral diseases can be prevented with vaccines
Post on 11-Jan-2016
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18.3 Viral Diseases
KEY CONCEPT Some viral diseases can be prevented with vaccines.
18.3 Viral Diseases
Viruses cause many infectious diseases
• There are many examples of viral infections.– common cold
Rhinovirus over 100 different types
18.3 Viral Diseases
– influenza
Viruses cause many infectious diseases
• There are many examples of viral infections.– common cold
18.3 Viral Diseases
– influenza
Viruses cause many infectious diseases
• There are many examples of viral infections.– common cold
– SARS
18.3 Viral Diseases
– HIV
HIV-infected whiteblood cell
Viruses cause many infectious diseases
• There are many examples of viral infections.
• The body has natural defenses against viruses.
18.3 Viral Diseases
A substance that stimulates the body’s own immune response against invasion by microbes.
• Made from a weakened form of the virus itself.
• Triggers the body’s immune system to produce antibodies
• Memory cells “remember” the virus so future attacks can be prevented.
• Measles • Mumps• Rubella• Influenza• Chicken Pox• Hepatitis• Meningitis• Polio• Small Pox (not used anymore)
• HIV (Aids)• Common cold• West Nile Virus
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