Warm Up  Williams has a cold. A cold is caused by a ________. Williams wants to get better soon so he can play in the basketball tournament. His mother.

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Presentation transcript:

Warm Up  Williams has a cold. A cold is caused by a ________. Williams wants to get better soon so he can play in the basketball tournament. His mother calls the doctor and asks for antibiotics. Do you think antibiotics could help Williams get over his cold quicker?  Yes No  Explain your ideas about taking antibiotics for a cold would or would not work

 Take notes in a book format.

Cutting watch Ms.Myers

Infectious Diseases By: _________(your name goes here)_______________

Infectious Disease

Types  Viruses  Bacteria  Fungi  Parasites Affect: Humans, Plants, and Animals.

Virus  non-living  DNA or RNA  need a host cell to reproduce.  invade healthy cells and to make more viruses, usually kill the cell  the most widespread illnesses in humans  Examples: AIDs, Chicken Pox, Flu (Influenza, H1N1), common cold.

Bacteria  single-celled organism  live in a variety of places (with oxygen, without oxygen, extreme hot, extreme cold).  grow and reproduce rapidly  Examples: Cholera, Salmonella (food poisoning), pneumonia, Lyme disease, tetanus, tuberculosis, strep throat, meningitis. Cocci Spirilla Baccili

Fungi  Fungi are heterotrophs.  Can reproduce in multiple ways  Fungi can sometimes attack the tissues of living plants and animals and cause disease.  Examples: Yeast, mold, mildew, ringworm  Symptoms: skin infections, allergic reactions, asthma attacks, pneumonia.

Parasite  organism that feed on another individual, known as the host.  live on or in their host’s body.  Infectious disease may also be caused by animal parasites, which may take up residence in the intestines, bloodstream, or tissues.

Vaccine vs. Antibiotic  Vaccines are used to prevent the spread of viral diseases. Must be taken before your infected.  Antibiotics are used to stop the growth of bacteria.  Bacteria become resistant (antibiotic wont kill them0 which is making it difficult to treat diseases.  ANTIBIOTICS will NOT KILL VIRUSES!!  Why not? Because its hard to kill something that’s not alive.

Epidemic vs. Pandemic  epidemic and pandemic are similar terms that refer to the spread of infectious diseases among a population.  pandemic = more people infected, and a larger region being affected. World-wide outbreak.  Epidemic= local or smaller area not world-wide.