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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