Biology 9: L#1-3

addie timeline

recieved pain/fever → hospital (virus ?) → ICU (pneumonia, CA-MRSA (scab picker) → got a bit better→ got worse → got a bit better→ lung bypass (ECMO) → lung transplant

addie cycle

(gram positive) bacteria entered skin (hip pain/fever)-sick (staph, CA-MRSA)→ AB got rid of bacteria→ AB stopped working & bacteria increased→ new AB made a bit better →(pan-resistant)→ tubes in ECMO gave gram neg bacteria →(steno) → veryvery sick

staphlylococcus

gram positive bacteria (causes skin infections)— MRSA (HA/CA) refer to types of staph

stenotrophomonas

gram negative bacteria (causes invasive infections)

MRSA

(methicillin antibiotic) methicillan resistant staphylococcus auereus

antibiotic resistant bacteria

bacteria thats not killed by antibiotics

non-antibiotic resistant bacteria

bacteria that will be killed by antibiotics

gram negative bacteria

bacteria thats hard to treat, causes invasive infections (ex: pneumonia)

pan-resistant

rare occurrence when disease cannot be treated, resistant to all antibiotics

L#2~history of AB resistance

over time, AB resistance identification has increased

L#2~CFU

colony forming units

L#2~susceptible

% of obtaining bacteria 

signs of MRSA:

painful sores/abrasions/cuts. puss, redness, swelling

5 prevention strategies

1. maintaining good hygiene

2. keeping wounds clean

3. keeping surfaces clean

4. cleaning everyday items

5. following disinfectant labels

difference between CA-MRSA & HA-MRSA ? 

CA-MRSA (community aquired) is when bacteria is obtained from public areas besides hospitals (like public transportation)

HA-MRSA (hospital aquired) is when bacteria is obtained while in hospitals 

whose victim of MRSA, are there variations?

anyone is a victim

there are multiple variations

L#2~summary of history

penicillin introduced first→resistance bacteria, overall bacteria evolved & became more resistant

L#2~how many people in US have AB resistant infection & how many people die as result

2 million people have it

23,000 people die 

L#2~how many cases were like addie’s ?

23 cases/100,000 people 

L#3~how does body take in bacteria, how to get rid of bacteria, how to collect it, how to grow bacteria safely ?

takes in bacteria thru inhaling/touch

washing hands/body regularly

swabbing/testing w/ microscope

grown safely in closed environment

L#3~how do we know bacteria in Addie alive ?

AB worked for a little till she became unresponsive to it (shown w/ ongoing symptoms)

L#3~how does bacteria reproduce

binary fission; where the bacteria duplicates & then separates into 2

L#3~summary of lesson#3A

bacteria can be found everywhere, areas used regularly contain most bacteria (especially if moist-ex: bathrooms), & areas not as used contain less

L#3~system

set of things working together

L#3~how does the relationship of a boundary to system relate to Addie ?

addies boundary (her skin) was broken down by picking her scab, which hallowed bacteria to enter her body (system)