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Transcript
Total Health Class 9
Infectious Disease
Blood Drive
• Thank you for all of your help to make the
Oct 11th blood drive a success!
• We had 15 successful donations! That is
45 potential lives saved !
• Our next blood drive will be Dec 6, 2011
This Generation
• As Iron sharpens iron….
• Days of Praise published by the Institute
for Creation Research.
• Sunday October 16, “Verily I say unto
you, This generation shall not pass, till all
these things be fulfilled.” Matt 24:24
The Spirit grows fruit in You
“ But the fruit of the Spirit is love, joy, peace,
patience, kindness, goodness,
faithfulness, gentleness and self-control.
Against such things there is no law.”
Galatians 5: 22 - 23
Getting up and Growing on
• “But one thing I do: Forgetting what is
behind and straining toward what is
ahead, I press on toward the goal to win
the prize for which God has called me
heavenward in Jesus Christ.”
Phil 3:13b - 14
Lecto Divina
Meditating on Scripture
• Remember to really think about this verse
this week;
• Let your meditations turn into prayers,
talking with God;
• Ask God to reveal and show you special
things about it;
• Write down what you think He may be
telling you about this verse.
Heaven is For Real
Collect papers
Infectious Disease
• Infirmities that afflict the body, although
unpleasant, are a reminder of the attacks
that are against the human body.
• Our bodies are attacked from the common
cold to cancer.
We serve a living God!
• Jesus’ name is above the name of any
illness, including cancer.
• He is Jehova Rophe, the God who heals
you. ( see Exodus 15:26)
A believer can experience…
• God’s peace and even total healing in the
midst of illness.
• The Bible is filled with examples time and
time again of God’s faithfulness to the sick
and the suffering.
• Jesus said, “The thief does not come
except to steal, and to kill, and to destroy.
I have come that they may have life, and
that they may have it more abundantly.”
Disease
• Any condition that negatively affects the
normal functioning of the mind or body.
Types of Pathogens
•
Louis Pasteur: founded the idea that
germs cause disease (germ theory)
1. Infectious diseases (communicable
diseases) These diseases can be passed
on from one person to another.
2. Pathogens or germs are microorganisms
that cause disease: bacteria, viruses,
fungi, and tiny animals are all pathogens.
Bacteria
• Are one-celled tiny organisms that come in
many shapes: rod-like (bacillus), round
(coccus), and spiral (spirochete).
• Bacteria grow everywhere.
Rod- Shaped Bacillus
• Has your doctor ever taken a swab of the
back of your throat to check for "strept
throat"?
• About 200 species of bacteria can cause
diseases in humans, including these
streptococcus (coccus means roundshaped).
• There are several kinds of streptococcus,
including the ones that cause strept throat,
ones that cause a type of pneumonia, and
the ones now known as "flesh-eating
bacteria".
Round Coccus - Streptococcus
Spiral Shaped Spirochete
• Bacteria, which are included within the kingdom Prokaryotae,
are single-celled organisms lacking a well-defined internal
cellular organization.
• The bacterium pictured here, exhibits the spirochete, or spiral,
structure characteristic of many of the 1600 species of bacteria.
Bacteria
• Bacteria are living organism. They need food
for energy and they produce waste.
• Disease – bearing bacteria produce
poisonous wastes that are harmful to the
body.
• Cholera, pneumonia, tuberculosis, certain
venerael diseases (such as gonorrhea), strep
and staph infections.
• Left untreated can cause death.
Your body’s defenses
• Work to stop the growth of these bacteria
and neutralize any toxins they produce.
• When the growth of bacteria is under
control, your body eliminates the poisons
and you recover.
Methicillin-resistant Staphylococcus
aureus (MRSA) Infection
• Is caused by a strain of staph bacteria
that's become resistant to the antibiotics
commonly used to treat ordinary staph
infections.
• Most MRSA infections occur in people who
have been in hospitals or other health care
settings, such as nursing homes and
dialysis centers.
• When it occurs in these settings, it's
known as health care-associated MRSA
(HA-MRSA).
• HA-MRSA infections typically are
associated with invasive procedures or
devices, such as surgeries, intravenous
tubing or artificial joints.
• Another type of MRSA infection has
occurred in the wider community —
among healthy people.
• This form, community-associated MRSA
(CA-MRSA), often begins as a painful skin
boil. It's spread by skin-to-skin contact.
• At-risk populations include groups such as
high school wrestlers, child care workers
and people who live in crowded
conditions.
Symptoms
• Staph skin infections, including MRSA, generally
start as small red bumps that resemble pimples,
boils or spider bites.
• These can quickly turn into deep, painful
abscesses that require surgical draining.
Sometimes the bacteria remain confined to the
skin.
• But they can also burrow deep into the body,
causing potentially life-threatening infections in
bones, joints, surgical wounds, the bloodstream,
heart valves and lungs.
Viruses
• When you are suffering from a cold you
are suffering from a virus, not a bacteria.
• Viruses are responsible for more infections
than any other pathogen.
• They are much smaller in size than
bacteria.
A virus is not a cell, it does not need food. It does
need material to reproduce, but it does not require
energy, technically.
• While bacteria produce toxins in the body,
viruses attack individual cells.
• The virus chooses the
tissue it wants to damage
Then it invades the cells of
The tissue.
Examples
• Polio invades cells of the nervous system
• Virus that produce cold sores invade the skin.
• Flu viruses attack the cells of the respiratory
system.
• Viruses are also responsible for mumps,
measles, chicken pox, smallpox, rabies and
most of the cases of hepatitis and AIDS.
• Scientists are researching the possibility that
viruses cause certain cancers.
Let’s see what happens when you
catch a cold.
• An infected person sneezes near you.
• You inhale the virus particle, and it
attaches to cells lining the sinuses in your
nose.
Common Cold Virus
• The virus attacks the cells lining the
sinuses and rapidly reproduces new
viruses.
• The host cells break, and new viruses
spread into your bloodstream and also into
your lungs.
• Because you have lost cells lining your
sinuses, fluid can flow into your nasal
passages and give you a runny nose.
• Viruses in the fluid that drips down your
throat attack the cells lining your throat
and give you a sore throat.
• Viruses in your bloodstream can attack
muscle cells and cause you to have
muscle aches.
Not a pretty Picture
Wash your hands
HIV virus
Why is HIV different?
• The HIV virus attacks T-cells in the
immune system, eventually causing AIDS
(acquired immunodeficiency syndrome).
• There is no such thing as an AIDS virus.
HIV progressively destroys the body's
ability to fight infections and certain
cancers.
• People diagnosed with AIDS may get lifethreatening diseases called opportunistic
infections, which are caused by microbes such
as viruses or bacteria that usually do not make
healthy people sick.
• In other words: HIV is different, because it
directly attacks the body’s ability to regain
health.
Fungi
• Organisms that usually cause disease of
the skin such as ringworm and athlete’s
foot.
• Although not as common, fungi can
penetrate the deeper tissues of the skin
and cause symptoms similar to a virus.
Fungal infections
• Can also be caused by spores that enter
the body through the air.
Ringworm
Athlete's foot is caused by a fungus that grows on or in the
top layer of skin. Fungi (plural of fungus) grow best in
warm, wet places, such as the area between the toes.
Tiny Animals
• One celled organisms called amoeba can
penetrate the human body and cause
problems in the lining of the membranes of
the intestines.
• A person carrying an amoeba pathogen
may not know it by may still infect others.
• A person who handles food in restaurants
may unintentionally infect customers.
• Some infectious animals are called
parasites. If a person carries too many
parasites in the body, it can interfere with
the individual’s ability to digest food and
absorb nutrients.
Common types of parasites
found in the colon:
•
•
•
•
Round Worms
Tape Worms
Giardiasis
Pin Worms
Round worms
Tape worms
• “Tapeworm infection of the intestine occurs
when people eat raw, contaminated pork, beef,
or freshwater fish. Most people with tapeworms
have no symptoms, but some report abdominal
discomfort, diarrhea, and loss of appetite.
Anemia may develop in people with the fish
tapeworm.”
• Yikes! I eat undercooked food all the time. I have
sushi at least 2 or 3 times a month. Maybe I
should get checked. But just in case you weren’t
already grossed out, here’s some more
information from Merck:
• “The pork and beef tapeworms are large,
flat worms that live in the intestine and can
grow 15 to 30 feet in length. Egg-bearing
sections of the worm (proglottids) are
passed in the stool. If untreated human
waste is released into the environment,
the eggs may be ingested by intermediate
hosts, such as pigs, cattle, or (in the case
of fish tapeworms) small crustaceans,
which are in turn ingested by fish.
• The eggs hatch into larvae in the intermediate
host. The larvae invade the intestinal wall and
are carried through the bloodstream to skeletal
muscle and other tissues, where they form cysts.
People acquire the parasite by eating the cysts
in raw or undercooked meat or certain types of
freshwater fish.
• The cysts hatch and develop into adult worms,
which latch onto the intestinal wall. The worms
then grow in length and begin producing eggs.”
• If you eat sushi as much as I do, make
sure you eat the ginger that’s on your
plate, ginger actually help kill the parasites
living in the raw meat, plus it’s really good
for you.
Giardiasis
• Giardiasis is the said to be the leading
cause of diarrhea.
• It is usually transferred through dirty water
and undercooked foods, but unlike our
other parasites, this is also considered to
be an STD (sexually transmitted disease).
• “Giardiasis is spread via the fecal-oral
route. Most people contract the disease by
ingesting contaminated water or food, or
by not washing their hands after touching
something contaminated with Giardia
cysts.
• Although humans are the main reservoir of
the parasite, a variety of domestic and wild
animals, such as dogs, cats, cattle,
beavers and deer carry Giardia species
and can infect humans. ”
• A common way for people to catch
giardiasis is by using a water-bottle
repeatedly and not washing it.
• This causes fecal matter to get trapped in
the lid and spread giardiasis.
• A little known fact about giardiasis is,
giardiasis is the leading cause of canker
sores.
Pinworms
• The pinworm usually resides in the lower
intestine, and can make you very, very
itchy in and around your anus.
• Don’t worry though, because as fast as
they come, they go just as fast.
• The Pinworm is very common in children,
and less common in adults.
• People commonly mistake pinworms for
hemorrhoids, and the pinworms are gone
before they can get a proper diagnosis.
Your Physical Defenses
• Immune System: is the body’s natural
resistance. Healthy bodies have a strong
defense against invasion.
• The development of an acquired immunity is
called the immune response. When the
body is invaded by a foreign substance, the
lymphocytes are triggered to produce special
proteins called antibodies.
• If the body’s resistance is strong enough,
the antibodies eventually destroy the
pathogen.
• From that time on the lymphocytes have
made a mental note of the germ and can
destroy it quickly if it reappears in the
body.
Antibodies
• Antibodies instinctively know to attack
viruses and bacteria but not to attack your
body’s healthy cells.
• If a germ has found its way into a body cell,
antibodies will not fight against it.
• If invaded, a cell produces interferon.
• Interferon is like an inside communication
system for your cells. The release of this
chemical informs the other cells to prepare
to fight the virus.
• If the virus cannot enter these cells, the
infection is stopped.
Fever
• Is another way your body reacts to a potentially
harmful invasion.
• A higher temperature may destroy some germs.
Also with the presence of a fever, the body
releases more germ-killing cells.
• If you have a low grade fever, it is good to allow
the fever to run its course.
• If your temperature is very high and
accompanied by body aches and pains, a nonaspirin medication can be taken to keep you
more comfortable until the fever is broken.
Homework
• Read Total Health: Infectious Disease
pages 136 through 147.
• Answer questions 7 – 11 and Discuss 5.
• Prayer Journal