Disease Detectives B/C

wec01
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Re: Disease Detectives B/C

Post by wec01 » February 26th, 2019, 7:47 pm

Cathy-TJ wrote:100 Science Olympiad teammates hold a party at 3AM after a tournament.
They sneak several food items from various sketchy locations. Some people focus on consuming various food items, some test their manipulation capabilities in mafia, and some watch Bird Box.

A day or so later, 50 of the teammates report symptoms of a gastrointestinal illness. Tests from the biotechnology lab at their high school reveal the agent to be a bacterium known as H. jerrah (Havishus jerrah).
Attached is a contingency table: https://drive.google.com/open?id=1Dy2zQ ... I2Fi84cmXO

1. a) Calculate the Odds Ratios for each exposure. Give your answers to two decimal places.
b) What is the most likely cause of the outbreak?

2. a) What is notable about the OR for playing mafia?
b) What kind of factor is playing mafia?
c) Propose an explanation for this.

3. a) Given that watching Bird Box induces people to stress eat a specific food, which food is it?
b) Justify your answer.

Note: Some values may be slightly unrealistic.
1. a) Cold pizza: 0.73; Chips: 1.28; Buttered noodles: 13.50; Tea(spilled): 1.00;  Played mafia: 0.014; Watched bird box: 7.67
    b) Buttered noodles

2. a) very low
    b) protective factor
    c) mafia kills Havishus jerrah bacteria

3  a) Buttered noodles
    b) Similar numbers
Note: I do not have enough knowledge to write a question
2019 Division C Nationals Medals:
4th place Fossils
5th place Sounds of Music
2nd place Thermodynamics

Cathy-TJ
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Re: Disease Detectives B/C

Post by Cathy-TJ » February 26th, 2019, 7:54 pm

wec01 wrote:
Cathy-TJ wrote:100 Science Olympiad teammates hold a party at 3AM after a tournament.
They sneak several food items from various sketchy locations. Some people focus on consuming various food items, some test their manipulation capabilities in mafia, and some watch Bird Box.

A day or so later, 50 of the teammates report symptoms of a gastrointestinal illness. Tests from the biotechnology lab at their high school reveal the agent to be a bacterium known as H. jerrah (Havishus jerrah).
Attached is a contingency table: https://drive.google.com/open?id=1Dy2zQ ... I2Fi84cmXO

1. a) Calculate the Odds Ratios for each exposure. Give your answers to two decimal places.
b) What is the most likely cause of the outbreak?

2. a) What is notable about the OR for playing mafia?
b) What kind of factor is playing mafia?
c) Propose an explanation for this.

3. a) Given that watching Bird Box induces people to stress eat a specific food, which food is it?
b) Justify your answer.

Note: Some values may be slightly unrealistic.
1. a) Cold pizza: 0.73; Chips: 1.28; Buttered noodles: 13.50; Tea(spilled): 1.00;  Played mafia: 0.014; Watched bird box: 7.67
    b) Buttered noodles

2. a) very low
    b) protective factor
    c) mafia kills Havishus jerrah bacteria

3  a) Buttered noodles
    b) Similar numbers
Note: I do not have enough knowledge to write a question
Looks good!
For 2c, I was thinking something along the lines of "mafia requires full mental capacity and makes people less likely to eat something as involved as buttered noodles". Mafia usually kills players with logic and intuition, not bacteria.
Nationals Placings:
2019 Circuit Lab - 1
2018 Disease Detectives - 1
2015 Picture This - 6

2019 Events:
Chemistry Lab, Circuit Lab, Disease Detectives

Competitors today, teammates tomorrow

wec01
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Re: Disease Detectives B/C

Post by wec01 » February 26th, 2019, 7:57 pm

I was told (by Cathy-TJ) to ask:

What was the “four inch rule” created to protect against?
2019 Division C Nationals Medals:
4th place Fossils
5th place Sounds of Music
2nd place Thermodynamics

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Re: Disease Detectives B/C

Post by Cathy-TJ » February 26th, 2019, 7:59 pm

wec01 wrote:I was told (by Cathy-TJ) to ask:

What was the “four inch rule” created to protect against?
"Note: I do not have enough knowledge to write a question" - wec01
Nationals Placings:
2019 Circuit Lab - 1
2018 Disease Detectives - 1
2015 Picture This - 6

2019 Events:
Chemistry Lab, Circuit Lab, Disease Detectives

Competitors today, teammates tomorrow

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Re: Disease Detectives B/C

Post by UTF-8 U+6211 U+662F » February 27th, 2019, 4:08 pm

Cathy-TJ wrote:
wec01 wrote:I was told (by Cathy-TJ) to ask:

What was the “four inch rule” created to protect against?
"Note: I do not have enough knowledge to write a question" - wec01
Salmonellosis from pet turtles

Cathy-TJ
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Re: Disease Detectives B/C

Post by Cathy-TJ » February 27th, 2019, 4:26 pm

UTF-8 U+6211 U+662F wrote:
Cathy-TJ wrote:
wec01 wrote:I was told (by Cathy-TJ) to ask:

What was the “four inch rule” created to protect against?
"Note: I do not have enough knowledge to write a question" - wec01
Salmonellosis from pet turtles
On behalf of wec01, I confirm this answer.
Nationals Placings:
2019 Circuit Lab - 1
2018 Disease Detectives - 1
2015 Picture This - 6

2019 Events:
Chemistry Lab, Circuit Lab, Disease Detectives

Competitors today, teammates tomorrow

UTF-8 U+6211 U+662F
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Re: Disease Detectives B/C

Post by UTF-8 U+6211 U+662F » February 27th, 2019, 5:14 pm

What are some possible steps the WHO could take to limit the spread of an outbreak of dengue fever?

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Re: Disease Detectives B/C

Post by Birdmusic » February 28th, 2019, 8:04 pm

UTF-8 U+6211 U+662F wrote:What are some possible steps the WHO could take to limit the spread of an outbreak of dengue fever?
Distribute mosquito nets.
Advise people to wear mosquito repellent outside.

Note: DDT can be used inside (depending on country), but should not be used outside, and should be used sparingly.
I like birds.
R/S
Crime Busters: 1/2
Disease Detectives: 1/5
Hovercraft: 11/9
GGSO/R/S
Disease Detectives: 6/3/10
Circuit lab:11/4/-
Sounds:3/2/1
Protein: -/-/6
GGSO/R/S
Disease Detectives: 2/-/-
Circuit lab 6/-/-
Sounds: 4/-/-
Protein:9/-/-

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Re: Disease Detectives B/C

Post by Killboe » February 28th, 2019, 8:17 pm

Cathy-TJ wrote:100 Science Olympiad teammates hold a party at 3AM after a tournament.
They sneak several food items from various sketchy locations. Some people focus on consuming various food items, some test their manipulation capabilities in mafia, and some watch Bird Box.

A day or so later, 50 of the teammates report symptoms of a gastrointestinal illness. Tests from the biotechnology lab at their high school reveal the agent to be a bacterium known as H. jerrah (Havishus jerrah).
Attached is a contingency table: https://drive.google.com/open?id=1Dy2zQ ... I2Fi84cmXO

1. a) Calculate the Odds Ratios for each exposure. Give your answers to two decimal places.
b) What is the most likely cause of the outbreak?

2. a) What is notable about the OR for playing mafia?
b) What kind of factor is playing mafia?
c) Propose an explanation for this.

3. a) Given that watching Bird Box induces people to stress eat a specific food, which food is it?
b) Justify your answer.

Note: Some values may be slightly unrealistic.
That's how mafia works.
Stanton College Preparatory

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Re: Disease Detectives B/C

Post by UTF-8 U+6211 U+662F » March 1st, 2019, 6:46 am

Birdmusic wrote:
UTF-8 U+6211 U+662F wrote:What are some possible steps the WHO could take to limit the spread of an outbreak of dengue fever?
Distribute mosquito nets.
Advise people to wear mosquito repellent outside.

Note: DDT can be used inside (depending on country), but should not be used outside, and should be used sparingly.
Yes, your turn

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