1. Communicable
Diseases
MarQueisa James & Nadine Moore

2. What Is a Disease?
• A disease is a illness that effects the proper
functioning of the body or mind
• A communicable disease is a disease that can
be passed to a person, animal, or object
that is what lung disease looks like >

3. Causes of Communicable Diseases
• Tiny organisms that cause communicable
diseases are called pathogens or germs
• An infection is a condition that occurs when a
pathogen enters the body, multiplies and
damages cells
• Bacteria are tiny one-celled organisms that live
nearly any where
• Virus is the smallest disease causing organism

4. This Is an Example of a Virus

5. Other Types of Pathogens
• Fungi are primitive life-forms that feed on
organic materials
• Protozoa are singled celled organisms that are
usually harmless but that can cause certain
diseases
those are live pathogens >

6. How are Pathogens Spread?
• Direct contact with an infected person
• Contact with a vector ( an organism such as an
insect, that transmit to a pathogen )
• Indirect contact with an infected person

7. The Lymphatic System
• The lymphatic system is a secondary circulatory
system that helps the body fight pathogens and
maintain its fluid balance
• The lymphatic system carries a fluid known as
lymph and produces white blood cells

8. Lymphatic System

9. Natural Defenses
• Eyes; tears contain chemical compounds that kill
pathogens and wash them out
• Skin; the outer layer of skin protects you from
pathogens, but they can enter you body through a
cut, scrape, or burn
• Stomach; gastric juices in your stomach help kill
pathogens that enter your body through foods or
drinks
• Saliva; washes germ from you mouth and contains
compounds that kills pathogens

10. Main Line of Defense
• The Immune System is a combination of body
parts that help fight off pathogens and diseases.
• Vaccinations, also known as immunizations
help your body fight off certain diseases. Some
vaccinations are given regularly, other are
given over periods of time.

11. Why are Vaccinations Important?
• Vaccines can prevent very harmful diseases
• Can prevent life threatening diseases
• If you're around young children and babies
you should have vaccines, they can easily catch
diseases
• Both adults and children need them
• If you're traveling you may get diseases you’ve
never heard of

12. Organs of The Immune System

13. What are STDs?
• Sexually transmitted diseases are infections
spread from person to person through sexual
contact
• Common STDs are; genital herpes, genital
warts, Chlamydia, gonorrhea, pelvic
inflammatory disease ( PID ), and syphilis

14. What you should know about STD’s
• Most STD’s spread through sexual contact
• You cannot tell if someone has STD’s through
physical appearance

15. Symptoms of STDs
• Genital herpes; painful, itchy blisters in genital
area
• Genital warts; painless warts in genital area,
burning during urination/ irritation
• Pelvic inflammatory disease; backache, fever,
vomiting

16. HIV/AIDS
• AIDS is also known as acquired
immunodeficiency syndrome
• It’s a disease the interferes with the body's
naturals ability to fight infection
• HIV also known as human immunodeficiency
virus
• HIV weakens your immune system

17. How is HIV Spread?
• Unprotected sex
• Sharing needles
• Birth

18. The
End
•