Disease Detectives B/C

[wec01]

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.

Here is an attempt (Click to Show Hidden Text)

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

[Cathy-TJ]

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.

Here is an attempt (Click to Show Hidden Text)

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!

Except (Click to Show Hidden Text)

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.

[wec01]

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

What was the “four inch rule” created to protect against?

[Cathy-TJ]

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

[UTF-8 U+6211 U+662F]

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

Click to Show Answer

Salmonellosis from pet turtles

[Cathy-TJ]

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

Click to Show Answer

Salmonellosis from pet turtles

On behalf of wec01, I confirm this answer.

[UTF-8 U+6211 U+662F]

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

[Birdmusic]

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.

[Killboe]

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.

[UTF-8 U+6211 U+662F]

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

Click to Show Answer

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