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` DIEGO ENRIUEZ

Infectious Diseaeses What Causes Infectious Diseases?

A girl with Chicken Pox.

Infectious diseases are caused by  Bacteria  Viruses  Fungi  Protists  Parasites Bacteria are small single-celled organisms that can cause disease. Most are helpful and are actually required. However others cause diseases such as TB and tetanus. Viruses are smaller than bacteria and are made of genetic material and a protein coat. They take control of other cells and force them to create more viruses. They cause things such as colds, the flu, and AIDS.

How do infectious diseases PLACE PHOTO HERE, spread? OTHERWISE DELETE BOX Infectious diseases spread through food and water, from person to person, through the environment, and through animals.

Fungi are organisms that absorb the nutrients of other organisms. They cause things such as athletes foot and ringworms. Protists are larger than bacteria and are usually freeliving. They cause Malaria.

People spread disease by coughing and sneezing. When you cough or sneeze you send drops of fluid in the air. These can carry pathogens that could potentially infect other people.

Parasites account for a large number of diseases worldwide, but not as much in the United States. They feed on other living things, examples of parasites are lice, tapeworms, and some roundworms.

Food and water spread disease by being contaminated. The environment spreads disease by giving pathogens a place to live outside of a body for a while. Animals spread disease the same way, they provide a place for pathogens to live.


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Treatment Treatment Medicines used to slow and kill bacteria are called antibiotics. However bacteria gain an antibiotic resistance if an antibiotic is used too often. There is no way to simply kill a virus so most medicines for viral infections focus on relieving symptoms. Using antifungal medicine is the best way to cure a fungus. The best way to treat a protistan infection is to not get it. Avoid contact with anyone who does and if you do get infected see a doctor to receive prescription medication. Parasitic infections can be avoided by not sharing combs and brushes or clothes. You can help prevent bacteria from becoming antibacterial resistant by following the instructions on the antibiotic and not stopping use early.

Protecting your self The body fights diseases by  Using skin, Mucous, and chemicals as Physical barriers.  Attacking pathogens which causes an inflammatory response.  The immune system learns how to protect the body from infections. Five ways to stay well are  Eating a healthy diet keeps the body well nourished.  Drinking water keeps you hydrated.  Staying unstressed to prevent your immune system from weakening.  Exercising regularly keeps you in shape.  Getting enough sleep helps keep your body functioning properly.  Avoid contact with sick people to help lower the odds of you getting infected by that person.


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When you are sick you should  Stay home  Drink lots of fluids  Follow directions given to you by a doctor  Throw away tissues and wash your hands To prevent spreading disease you can  Get vaccinated  Stay clean  Wash hands often  Cover your mouth when sneezing or coughing

Disease affects everybody because pathogens are everywhere, it is impossible to avoid them forever. Some common diseases are  Strep Throat. Symptoms of strep throat include sore throat and fever. Spread my contact with mucous from an infected person.  Meningitis Symptoms include headache, fever, stiff neck, and nausea. Spread by saliva or mucous from an infected person.

Common Viral infections include  Flu Symptoms include headache, sore throat, and fever. Spread by contact with someone infected.  Mumps Symptoms include pain of glands in the throat, fever, and head ache. Spread by airborne droplets. An example of a fungal infection is athletes foot. This causes the skin to turn red and itchy. An example of a Protistan infection is Amebic dysentery which causes an inflammation of the intestines. Symptoms include nausea and diarrhea. An example of a parasitic infection is headlice. Headlice cause itchiness on the head and can be seen with the naked eye.

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