Transcript infectious disease

Infectious Disease
5th block – Hunger games?
Do Now NB 150 top – 8 mins
1. Name these bacteria:
a) Clusters of rod bacteria
b) Groups of 4 round bacteria
c) Chain of spiral bacteria
2. Describe these bacteria:
a) Staphylobacillus
b) Streptospirillium
c) tertracoccus
Happy Wednesday - Agenda
• Infectious Disease!
– Notes
– Videos
– Independent Practice
Thursday – Biotechnology
Friday – Quiz & video
Infectious Diseases NB 153
DISCOVER ACTIVITYHOW DOES A DISEASE SPREAD?
Names of people you have
touched today
Who might they have
touched today?
infectious
disease
•disease that
can pass
from one
organism to
another
pathogen
• organism
that can
cause
disease
scientists & their ideas
Louis Pasteur
Joseph Lister
Robert Koch
• showed microorganisms
cause disease
• microorganisms caused
diseases
• killing microorganisms
could prevent spread of
diseases
• performed surgery under
more sterile conditions
• infectious disease caused
by specific pathogen
Joseph Lister using a carbolic steam
sprayer to spread a mist of carbolic acid.
• In the 1800’s, surgery was performed
under conditions that were very
different from those used today.
• Surgery today
is performed in
operating
rooms that
have been
cleaned
thoroughly to
eliminate
diseasecausing
organisms.
THEN
NOW
4 major
groups
of human
pathogens
1.
bacteria
2.
viruses
3.
fungi
4.
protists
–http://medmyst.rice.edu/index.html
1. bacteria
 1 celled microorganisms
 produce toxins (poisons)
 diseases caused by bacteria:
strep throat- streptococcus bacteria
tetanus
Pictures Of Strep Throat
Here are three pictures of strep throat.
Notice the red flecks indicating a bacterial infection.
Infectious Diseases Caused by Bacteria [03:07]
2. viruses
• smaller than
bacteria
• cannot
reproduce
unless inside
living cells
2. viruses
• diseases caused by viruses:
– cold
– influenza (flu)
– chicken pox
chicken pox
The Littlest Assassins: What Are Viruses? [03:35]
3. fungi
• molds, yeasts
• athlete’s foot
4. protists
•malaria
The Anopheles mosquito carries the
protist that causes malaria.
sources of
pathogens
1.
person 
person
2.
contaminated
object
3.
animal bite
4.
environment
1. person to person transfer
• thru direct physical contact
–kissing, shaking hands
• thru indirect contact
–sneezing
2. contaminated objects
towels
water
food
silverware
3. animal
bites
rabies
The Lyme disease
bacterium, Borrelia
burgdorferi, normally lives in
mice, squirrels and other
small animals.
It is transmitted among these
animals – and to humans -through the bites of certain
species of ticks.
engorged deer tick
4. environment
soil
water
Independent Practice NB 152
• Do not write on the worksheet!
• Use notes from this week & Ch5E
• Time-> 20 minutes
• When done: Come to me and get your
classwork sheet: Biotechnology!
– Textbook –pgNC28-30 pros/cons
TGIF!!!!!
•
Do now – NB 154
–
Please write1+ paragraphs about
1) I feel I learn the best by…
2) I know I need to review the following topics…
3) I feel I understand…..
Agenda:
Review yesterdays work
Video
Quiz…. I am moving to MONDAY. 