Download Aids and HIV

Viruses v. Bacteria
Viruses
v.
Bacteria
Very Small
Size
Larger, but still
microscopic
NOT A CELL
Type of Cell
Prokaryote
Non Living
Living?
Living
Invades host and
makes copies
of itself
Reproduction
Binary fission
(grow and split)
Virus
v.
Bacteria
NONE
Treatment
Antibiotics
Prevention
Vaccines,
good hygiene
Vaccines,
good hygiene
NONE
Chickenpox,
AIDS
Benefits
Example
Drawing
Helps with digestion
(in stomach)
Streptococcus,
e-coli, anthrax
Aids and HIV
HIV stands for Human
Immunodeficiency Virus
It is the virus that causes AIDS
• HIV enters the body through the
transmission of bodily fluids and attacks
a specific type of immune cells called T
Cells
T Cells
• T cells circulate in your body looking for
cells that “don’t belong”
• They will attack and destroy invading
bacterial cells and cancer cells
• When infected with HIV, the virus begins
to reproduce within the T Cell (this
destroys the T Cell)
The Onset of AIDS
• An infected person eventually reaches the
point in which the body has too few T
Cells to defend against invaders
• At this point the person has AIDS
AIDS
• AIDS stands for Acquired
Immune Deficiency Syndrome
• AIDS is 100% fatal
Facts
• HIV is found in all body fluids (blood and
semen- contain a much higher
concentration of HIV)
• HIV is most commonly spread through:
– sexual contact, contact with contaminated
needles, mother to child during pregnancy,
child birth and breast feeding
• HIV is not spread through:
– Kissing,Shaking hands,Water fountains,
Sneezing, or Insects