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3/21 - 7th Grade Agenda
Collect HW: Reading & Notetaking p. 157 – 160Chap 8 Test for absent studentsHerpes & AIDS VirusPassback HW & Test & Grade PrintoutTextbook Reading 328 – 338HW: Reading & Notetaking 161 – 164HW: Return signed grade printout by 3/22 & 3/23Last day to turn in late work for this Quarter is 3/22 & 3/23
Reflection
• Prompt: Write 3 facts that you know about viruses and bacteria
Last day to turn in late work for this Quarter is 3/22 & 3/23
• I will not accept any late work of this Quarter after 3/22 & 3/23
What causes colds, flu, smallpox, AIDS?
• Viruses
Cold VirusAIDS Virus
Flu Virus
Is a virus alive?
• No• Scientists does not
consider viruses alive because it can not reproduce by it self
• It must multiply in another cell
Virus• Virus contains single strand of DNA and
protein coat protecting it.
Virus
• Once inside a cell a virus’s gen_____ material takes over many of the cell’s functions.
• It instruct the ce___ to produce the virus’s proteins and genetic material.
etic
ll
How Virus Spreads
Herpes Virus
• 80% of Adult Population has Oral Herpes
• 60% of Older Teenagers has Oral Herpes
• 25% of Adult Population has Genital Herpes
• 80% of people infected with Herpes Virus is not aware that they have it
How is Herpes Spread?
• Skin to Skin contact with person with an active Herpes (i.e. Cold sore)
• Kissing some body with active Herpes• Sharing food or utensils with infected person• Sharing towels with infected person• There is no Herpes Vaccine• Once you get Herpes you will have it forever
Symptoms of Herpes• Oral Herpes:
– Itchy around the sores– Pain around the gum and mouth– Last about 14 days and it will return
• Genital Herpes: – Itchy around the sores– Painful while urinating– May last weeks or months and it will return
Over 80 million men, women and children are infected with HIV
• Epidemic: The rapid spread of a disease so that many have it at one time
• Endemic: Common to a population• Pandemic: Spreading over the entire continent
or the whole worldSo Is AIDS an Epidemic, Endemic or a
Pandemic?Its an Epidemic, Endemic and a Pandemic
About 1 out of 100 Americans have AIDS
About 1 out of 8 U. S. cases of AIDS are in California
Over 100,000 AIDS Cases in California
Through which bodily fluids is AIDS transmitted?
• Blood
• Semen
• Vaginal Fluids
• Breast Milk
Through what part of the body is AIDS transmitted?
• Mouth• Openings in
Skin• Anus• Genitals
Hepatitis Virus – Infects the liver
• If you get this virus there is a chance that you will never get rid of it.
• 350 Million people world wide are infected with the virus and can not get rid of it (chronic)
Hepatitis Virus – How is it transmitted?
• Transmitted in a similar ways as HIV• If you get infected with the Hepatitis Virus, it may
damage your liver and lead to liver cancer.• 350 Million people world wide are infected with
the virus and can not get rid of it (chronic)• You can get vaccinated against the Hepatitis
virus so that you will be protected against it.