Health and Disease

What are the different types of pathogens?

How vaccinations work

Name 6 transition methords

Non-Communicable diseases

Body contact

Contaminated water

Animal Vector

Droplets

Contaminated food

Body fluids

Name 6 disease and there transition methods

Salmonella
Contaminated food

Cholera
Contanmiated Water

Influenza (Flu)
Droplets

Malaria
Animal Vector

Athlete's' foot
Body Contact

AIDS Body Fluids

Virus

Fungi

Bacteria

Protoctist

Communicable diseases

caused by pathogens and are infectious.

not caused by pathogens and are not infectious

Colds, Flu
AIDS
Ebola
Measles
TB
Cholera
Athlete’s Foot

Most cancers
Heart Disease
Strokes
Diabetes
Cirrhosis of the liver

Barriers to infectious disease

Nose - when we are breathing

Eyes - if contaminated substances get into them

Mouth - when we are eating and breathing

Ears - if contaminated substances get into them

Genitals - if contaminated substances get into them

Skin- If you have a cut or a scratch

Pathogens have antigens on their surface that are unique to them.

A lymphocyte with an antibody that fits the antigen perfectly is activated.

This lymphocyte repeatedly divides to produce clones of identical lymphocytes

Some of the lymphocytes secrete large amounts of antibodies to destroy the pathogen.

Other lymphocytes remain in the blood as memory lymphocytes, ready to respond if the same antigen ever turns up again.

click to edit

Pathogens have antigens on their surface that are unique to them.

A lymphocyte with an antibody that fits the antigen perfectly is activated.

This lymphocyte repeatedly divides to produce clones of identical lymphocytes.

This lymphocyte repeatedly divides to produce clones of identical lymphocytes.

Other lymphocytes remain in the blood as memory lymphocytes, ready to respond if the same antigen ever turns up again.