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Transcript of infectious disease
What happens to the influenza virus every 20-40 years, and why? What are the recent example (s)?
How Pandemics Spread
Epidemic: a widespread occurrence of an infectious disease in a community at a particular time.
Pandemic: prevalent throughout an entire country, continent, or the whole world; epidemic over a large area.
Epidemic vs. pandemic
Antibiotics: An antibiotic is an agent that either kills or inhibits the growth of a microorganism.
Inappropriate use of antibiotics has helped create strains of bacterial disease that are resistant to treatment with different types of antibiotic medications.
The problem with antibiotics…
When a virus enters your body, it invades some of your cells and takes over the cell machinery, redirecting it to produce the virus.
Some varieties live in extremes of cold or heat, while others make their home in people's intestines, where they help digest food.
Most bacteria cause no harm to people.
Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites.
What is infectious Disease?
You are part of the CDC (Centers for the Disease Control) and they have had some recent epidemics of some unknown diseases.
They need your help to diagnose some individuals so they can help to prevent the spread of these diseases to to not start a pandemic!
Step 1: You need to read the information sheets and look for the symptoms to match it with the disease (be careful, some symptoms are similar- look for the rare symptoms first)
Step 2: Figure out how the disease spreads
Step 3: Write how to treat it
Skin contact or injuries
Inhalation of airborne germs
Ingestion of contaminated food or water
Tick or mosquito bites
Infectious agents can enter your body through:
In some cases, it may be difficult to determine whether a bacterium or a virus is causing your symptoms.
Many ailments — such as pneumonia, meningitis and diarrhea — can be caused by either type of microbe.
Virus vs. Bacteria
What does infectious disease mean?
What are 2 examples of infectious diseases?
How can infectious disease be prevented?
Warm up #5: Copy and Answer
Prepare food safely.
Practice safe sex.
Don't share personal items.
Follow these tips to decrease your risk of infecting yourself or others:
Wash your hands.
How can we prevent the spread of disease?
Many organisms live in and on our bodies.
They're normally harmless or even helpful, but under certain conditions, some organisms may cause disease.
Bacteria are single-celled microorganisms that thrive in many different types of environments.
Infections caused by bacteria include strep throat, tuberculosis and urinary tract infections.
Viruses are even smaller than bacteria and require living hosts — such as people, plants or animals — to multiply. Otherwise, they can't survive.
Diseases that result from viruses include chickenpox, AIDS and the common cold.
The most important distinction between bacteria and viruses is that antibiotic drugs usually kill bacteria, but they aren't effective against viruses.
More and more bacteria are becoming antibiotic-resistant. How might this affect our ability to fight certain infectious diseases in the future?