More Immune System... - PowerPoint PPT Presentation

Loading...

PPT – More Immune System... PowerPoint presentation | free to download - id: 72b237-ZDQyM



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

More Immune System...

Description:

More Immune System... Current (2011) mandated vaccines for attendance in Texas schools: 3 doses of DPT, DTaP, DT, Td 4 doses of Polio 1 dose of Measles on/after 1st ... – PowerPoint PPT presentation

Number of Views:55
Avg rating:3.0/5.0
Slides: 50
Provided by: Stuart199
Category:
Tags: cells | immune | more | system

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: More Immune System...


1
More Immune System...
2
Taking in food and oxygen exposes us to pathogens
esophagus
stomach
3
Pathogen a disease causing agent
4
Viruses only harm cells by invading them and
using the cell to reproduce
5
CB 19.4
basic viral reproductive cycle
6
CB 19.6
The Lytic and Lysogenic Cycles
Lysogenic cycle
Lytic cycle
7
(No Transcript)
8
(No Transcript)
9
Spanish flu of 1918-1919
10
How many people die from the flu in a normal
year in the U.S.? 36,000 About 90 are over 65
years old
http//www.cdc.gov/flu/about/disease/index.htm
11
Spanish flu of 1918-1919
  • Killed between 20-50 million people worldwide
    675,000 in the U.S. (2.5-5 of world population)
  • Infected 1/5 to 1/4 of world population
  • Was most lethal to people 20-40 years old

http//virus.stanford.edu/uda/
12
Spanish flu of 1918-1919
People on their way to work suddenly developing
the flu and dying within hours (Henig). One
physician writes that patients with seemingly
ordinary influenza would rapidly "develop the
most viscous type of pneumonia that has ever been
seen" and later when cyanosis appeared in the
patients, "it is simply a struggle for air until
they suffocate," (Grist, 1979). Another
physician recalls that the influenza patients
"died struggling to clear their airways of a
blood-tinged froth that sometimes gushed from
their nose and mouth," (Starr, 1976).
http//virus.stanford.edu/uda/
13
The high fatality rate from the Spanish flu was
probably due to an immune system over-reaction
14
CB 19.8
HIV, a retrovirus, infects Helper T-cells
15
Reverse Transcriptase RNA to DNA
HIV reproduction
CB 19.8
16
CB 19.8
HIV has both a lytic and lysogenic cycle
17
(No Transcript)
18
Where did HIV come from, and where is the next
HIVesque virus?
http//www.ted.com/talks/lang/eng/nathan_wolfe_hun
ts_for_the_next_aids.html
19
The Immune System
  • Specific
  • B-cells -gt antibodies
  • T-cells
  • Non-specific
  • barriers

Fig 43.2
20
B-cells make antibodies that bind to antigens
marking them for destruction
Marked for destruction by WBC
Fig 43.19
21
T-cells recognize and destroy abnormal cells
Fig 43.18
22
CB 43.16
23
It can take 7-14 days to produce sufficient
antibodies to eliminate a pathogen
Fig 43.15
24
Memory B-cells make the response to a second
exposure more rapid
Fig 43.14
This is how vaccines work.
25
Vaccines work via memory B-cells that make the
response to a second exposure more rapid
Fig 43.15
26
When politics and science collide...
27
Human Papilloma Virus
28
(No Transcript)
29
  • At least 50 of sexually active people will get
    HPV at some time in their lives.
  • Every year in the United States, about 6.2
    million people get HPV.
  • HPV is most common in young women and men who are
    in their late teens and early 20s.

http//www.cdc.gov/std/hpv/STDFact-HPV-vaccine.htm
hpvvac7
30
The American Cancer Society estimates that in
2006, over 9,700 women were diagnosed with
cervical cancer and 3,700 women died from this
cancer in the U.S.
http//www.cdc.gov/std/hpv/STDFact-HPV-vaccine.htm
hpvvac7
31
The HPV vaccine developed by Merck, Gardasil,
protects against four HPV types which account for
70 of cervical cancers and 90 of genital warts.
http//www.cdc.gov/std/hpv/STDFact-HPV-vaccine.htm
hpvvac7
32
(No Transcript)
33
The Texas Department of Health has ruled that
students must be current with immunizations in
order to attend school unless an exemption has
been filed with the school in accordance with
Texas Education Code, Health and Safety, Chapter
38.0001.
34
  • Current (2011) mandated vaccines for attendance
    in Texas schools
  • 3 doses of DPT, DTaP, DT, Td
  • 4 doses of Polio
  • 1 dose of Measles on/after 1st birthday and 1
    dose MMR on/after 1st birthday.
  • 3 doses of Hepatitis B
  • 1 dose of Varicella on/after 1st birthday (if the
    child has NOT had chickenpox)
  • 1 dose of Meningococcal before entry to 7th grade
  • 2 doses of Hepatitis A

http//www.dshs.state.tx.us/immunize/tvfc/tvfc_abo
ut.shtm
35
The HPV vaccine is recommended for 11-12
year-old girls, and can be given to girls as
young as 9.
http//www.cdc.gov/std/hpv/STDFact-HPV-vaccine.htm
hpvvac7
36
The HPV vaccine is recommended for 11-12
year-old girls, and can be given to girls as
young as 9. For the vaccine to be effective,
you must be vaccinated prior to exposure to HPV.
http//www.cdc.gov/std/hpv/STDFact-HPV-vaccine.htm
hpvvac7
37
Controversy
http//www.youtube.com/watch?vJ1Zg46JKDzM
38
(No Transcript)
39
(No Transcript)
40
  • The length of vaccine protection (immunity) is
    usually not known when a vaccine is first
    introduced.
  • So far, studies have followed women for five
    years and found that women are still protected.

http//www.cdc.gov/std/hpv/STDFact-HPV-vaccine.htm
hpvvac7
41
  • The length of vaccine protection (immunity) is
    usually not known when a vaccine is first
    introduced.
  • So far, studies have followed women for five
    years and found that women are still protected.
  • More research is being done to find out how long
    protection will last, and if a booster vaccine is
    needed years later.

http//www.cdc.gov/std/hpv/STDFact-HPV-vaccine.htm
hpvvac7
42
The retail price of the vaccine is 120 per dose
(360 for full series). While some insurance
companies may cover the vaccine, others may not.
http//www.cdc.gov/std/hpv/STDFact-HPV-vaccine.htm
hpvvac7
43
The Specific Immune System Self vs Non-self
44
Allergies are an immune response to a non-pathogen
CB 43.23
45
Antibodies attached to Mast cells cause release
of histamines... cause inflammation
http//www.niaid.nih.gov/topics/immuneSystem/Pages
/disorders.aspx
46
Autoimmune diseases occur when the immune system
recognizes self as foreign
47
Some forms of diabetes are caused by the immune
system destroying the insulin producing cells in
the pancreas
http//www.niaid.nih.gov/topics/immuneSystem/Pages
/disorders.aspx
48
Autoimmune diseases (partial list) Crohns
disease, diabetes (type 1), lupus, narcolepsy,
pernicious anemia, psoriasis, rheumatoid
arthritis, ulcerative colitis
http//www.niaid.nih.gov/topics/immuneSystem/Pages
/disorders.aspx
49
Enjoy your Break
About PowerShow.com