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Transcript of Infectious Diseases
Health on Demand. (2010) Health and Wellness for Life. Human Kinetics: IL.
Spread easily from person to person
Mode of Transmission
Avoid harmful substances
Avoid harmful environments
Plenty of sleep
Chain of Infection
Causes the disease
Agent lives & grows here
To Leave reservoir
To enter new host
Common vehicle & Vectors
droplets and particles
microscopic single cell organism
infectious parasites containing DNA or RNA in protein shell
single celled or multi-celled organisms; make spores
one celled organisms can live outside of host
live in or on host; after eggs ingested or larvae burrow in skin
consist of just protein without RNA or DNA; change the function of infected cells; much unknown
Your Body's Defenses
Hair and cilia
Innate immune System:
Clears dead cells
Identify & remove foreign substance
Acquired Immune System:
Develop memory of past disease and form better attack plan for next time; vaccinations
Passive Immune system:
Received from mother
Transported by Infected mosquitos
No specific treatment; more severe cases require intensive hospital care
Contaminated food or water by bacterium called vibrio cholera
Use only water that has been boiled, chemically disinfected or bottled.
Food or water contaminated with infected stool
Goes away on its own in most cases
When blood, semen or vaginal fluids from an infected person enter another person’s body
Vaccine, antiviral medicine, diet, fluids, avoiding alcohol and drugs
by sharing needles and other drug paraphernalia
Once-daily pill called Harvoni that cures the disease in most people in 8-12 weeks
Airborne when infected person coughs or sneezes
Decongestants and antihistamines
caused by bacteria and viruses that usually live inside us
antibiotics, corticosteroids, fever reducers. Oxygen therapy, to improve breathing.
Viruses, bacteria, a fungus, parasites or other organisms can all cause it
Antibiotics, rest, fluids, and home care
infected mosquitoes most commonly found in parts of South America and Africa.
No cure. Treatment is to relieve fever, muscle pain, and dehydration.
caused by streptococcal (strep) bacteria
Antibiotics such as amoxicillin,cephalexin, or penicillin
It is contracted through unprotected sex or needle sharing.
There is no cure but antiretroviral drugs are use to control it.
Airborne droplets or particles after cough or sneeze
No prescription medication. Disappears within two to three weeks. For symptom relief: Acetaminophen, rest, plenty of fluids, humidifier, vitamin A supplements
caused by the varicella-zoster virus (VZV) through direct contact or airborne carry
Antiviral drug acyclovir (for severe cases),
Cool baths with baking soda
bacterial infection caused by the spirochete Borrelia burgdorferi, and transmitted by a tick bite.
Antibiotics for four to six weeks.
caused by the reactivation of the varicella-zoster virus, which causes chickenpox.
Pain killers and antiviral drugs
Caused by contaminated food or water.
Fluids, rest, OTC meds; call a doctor if symptoms get severe
Skin or deep tissue wound or puncture. It is also seen in the umbilical stump of infants in underdeveloped countries.
Medications to control muscle spasms
Thorough cleaning of wound
A tracheostomy if severe respiratory problems
Most disease information complementary of WebMD
In pairs, pick a disease from the book. Practice labeling each component
In groups discuss risk factors that are within and outside your control
Lets play a game!
By CDC Global (Ebola virus) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons
By Frank Fox - http://www.mikro-foto.de, CC BY-SA 3.0 de, https://commons.wikimedia.org/w/index.php?curid=20220265
By Cornu (talk) 19:04, 5 June 2009 (UTC) - Own work, CC BY 2.5, https://commons.wikimedia.org/w/index.php?curid=1451951
Hook Works in Intestine
By Transferred from en.wikipedia to Commons.This media comes from the Centers for Disease Control and Prevention's Public Health Image Library (PHIL), with identification number #5205. Public Domain, https://commons.wikimedia.org/w/index.php?curid=1877700