6th Grade Picnic
E. coli Detectives
Start
level 1
Remember, your mission is to gather evidence and figure out the source of the E. coli. What is causing this outbreak? A few pro tips to get you started: a) Write evidence down: You have a mission log for a reason. I always find that it is helpful to write notes so that you can come back to what you learned along the way. b) Find patterns: Notice key details and see if you can find any patterns that point to the cause of the outbreak. c) Use the process of elimination: Once you have reviewed new information, see what you can eliminate as a cause. Have fun and stay curious!
Drive to Riverside Town
Background
Welcome to Riverside town. I hope you had a safe flight here and are ready to roll up your sleeves and get to work! To start I have gathered a few pieces of background information to help you get started. Review the pieces of the file so that you can get ready to interview some students who have been impacted.
File 1: What is E. coli?
File 2: Log of Events
File 1: E. coli Video
Watch this video about E. coli. Note the full name of this bacteria and where it originates from.
What did you learn?
Background
File 1: What is E. coli?
File 2: Log of Events
File 2: Log of Events
Review the notes from the school's office. Write down possible causes of the E. coli and how many people have fallen sick. List the symptoms linked to E. coli.
Day 5
Day 2
Health Department Alerted
Initial Symptoms
Day 1
Day 3-4
School Picnic
Increase in Reports
What did you learn?
Start
In every case, the details matter and can make or break a case. Let's see how close you have been taking notes and paying attention!
Question 1/10
Question 2/10
Question 3/10
Question 4/10
Question 5/10
Question 6/10
Question 7/10
Question 8/10
Question 9/10
Question 10/10
Well Done!
Every detail matters and make a huge difference in solving this case. Especially when it comes to public health. If you got a few answers wrong that's okay. This quiz was to help you pay attention to the details. Feel free to go back and edit your notes and review the files again to make sure you have all the correct information.
level complete
next level
level 2
Mike
To:
Hey Mike! The interns are doing a great job so far even though they may be tired from the journey.
I was worred about that. Traveling can be tough for work but it's great to hear they are doing well. What's next?
Now it's time for them to interivew some of the students that got E. coli.
Aww! Gathering firsthand evidence. 🕵️♂️ It often holds the key to solving cases like this.
Definitely. It will be important for them to pay close attention to what symptoms kids experienced.
Yes AND to listen carefully to what the kids did and ate at the picnic.
Yes. A vital skill in public health is to listen, observe and ask good questions.
Mike
To:
For sure. Sounds like you are doing a great job mentoring these interns.
It's really nice having more eyes, ears and hands help out with this case.
Amazing. Let's dive into Level 2. Remember, every conversation is a clue. Listen, observe, and think critically. Good luc
Student Interviews
Listen to each of the interviews. As you listen note: a) What are the symptoms that each student shares? b) What did each kid eat and do at the picnic? c) What are the possible causes? d) What new questions do you have?
Noah
Bella
Alex
What do you know so far about this case? Discuss and write down: a) What are the symptoms each kid experienced? b) How do we know it is E. coli? c) What can you hypothesize are the possible causes of E. coli? d) How do we know it is not because kids played in the river?
GUESS The Word?
You have learned some important scientific words. Let's review some words to make sure that you truly understand the meaning.
Start
Discover the Word with a few clues
What is this word?
Good luck!
This word means the clues or hints that show there might be a sickness or health problem.
Clue 1
What is this word?
Try Another
Doctors use this word to talk about the things you feel or see that tell you might be sick, like a cough or feeling tired.
Clue 2
What is this word?
Try Another
They can be a lot of different things, like a sore throat, a fever, or a stomach ache, depending on what sickness you have.
Last Chance
congratulations!
Symptom
You have guessed the right word
Cool!
Better Luck Next Time
Symptom
The correct answer is Symptom
OOHH!
What is this word?
Good luck!
These are so small that you can't see them without a microscope, but they are alive just like plants and animals.
Clue 1
What is this word?
Try Another
They are found all over the world, in the air, soil, water, and even inside our bodies.
Clue 2
What is this word?
Try Another
They can help us by breaking down food in our stomachs or by making vitamins, while others can make us sick.
Last Chance
congratulations!
Bacteria
You have guessed the right word
Cool!
Better Luck Next Time
Bacteria
The correct answer is Bacteria
OOHH!
What is this word?
Good luck!
A piece of information that helps you figure out if something is true or what really happened in a mystery.
Clue 1
What is this word?
Try Another
When you do experiments in science, this is the information you collect from your observations or experiments to support your idea as right or wrong.
Clue 2
What is this word?
Try Another
Just like detectives look for fingerprints or footprints to solve a case, they use this to find answers.
Last Chance
congratulations!
Evidence
You have guessed the right word
Cool!
Better Luck Next Time
Evidence
The correct answer is Evidence
OOHH!
What is this word?
Good luck!
This is when you use or eat something.
Clue 1
What is this word?
Try Another
When you go to a store and buy things like toys or clothes, that's also an example because you're using money to get something.
Clue 2
What is this word?
Try Another
This idea is important because it reminds us that everything isn't unlimited. We need to be careful about how much we use so things don't run out.
Last Chance
congratulations!
Consumption
You have guessed the right word
Cool!
Better Luck Next Time
Consumption
The correct answer is Consumption
OOHH!
level complete
next level
level 3
Test Results
Table 1: Comparison of foods eaten by kids who fell sick vs. kids who did not fall sick.
Great work on those interviews, team! You've gathered some crucial firsthand accounts which are invaluable in our investigation. You might have started to form some questions about what are the differences between kids who fell sick and those who didn't. Look at the table that shares information about what all kids ate. What pattern do you observe and what can you conclude?
What did you learn?
E. Coli Testing
We also decided to test all of the food that was present at the picnic for E. coli. Look at the data below. 0 is not positive and 1 is positive. What ingredients tested positive for E. coli?
Graph 1: What foods tested positive for E. coli.
What did you learn?
level complete
next level
level 4
Salad Plus
Salad Plus Cleanliness Checklist
Many times E. coli spreads because of the mishandling of food. Things like washing of hands or not keeping up with food preparation policies like wearing gloves or keeping food at the right temperature. So we decided to review and test the sanitation practices at Salad Plus to see if it was because of food preparation. The table shows what we found.
Salad Plus
E. coli Test - No E. coli found at Salad Plus
It looks like Salad Plus is super clean and the manager keeps up with food safety practices well. All their logs show that they are doing everything right. To be triple safe though, we then tested a bunch of different places for E. coli. Look at the results of that test. What can you conclude?
What would you ask next?
Source of the Ingredients.
Well, we know the lettuce and tomato had E. coli, so if Salad Plus is clean then we gotta keep digging and figure out where the lettuce and tomato were sourced. It could be that the E. coli was there but because they are so clean there is now no trace of it. Click on the images to see where each ingredient of the salad was sourced.
Where should we go next?
Brain Break
Find the double as soon as possible!
PLAY
level complete
next level
level 5
Jess
To:
Hey Jess, So I heard that Salad Plus was clean!!
I know. I was surprised but that's what's great about science. Most of the time our hypotheses are not correct.
That's so true. It's actually not about being right. It's about continously asking questions to gather the right evidence to draw the right conclusions.
Yes but what's interesting is that we do know the lettuce and tomato in the 🥗 did test positive for E. coli.
🤢! So I guess at some point the bacteria was at Salad Plus.
Yes. But it didn't originate there. Everything was too clean. It must have traveled to Salad Plus.
So what's next?
Jess
To:
Well they found out that the 🥬 and 🍅 were sourced from Riverside Farms.
Interesting. But E. coli does not originate in vegetables.
That's right. This is why we have to now go investigate at the farm.
Oh fun! The interns really are driving all around town to investigate this case.
Yes and it's an important reminder that we have to keep digging and asking questions to get to the real source.
For sure! Off to the farm you go!
Where should we test?
We are about to go to Riverside Farm. Where do you think we should test for E-coli in that farm? Where do you predict E-coli might show up and why? Turn and talk to a partner to share your initial thoughts.
We are about to go into Riverside Farm. Where do you think we should test for E. coli on the farm? Turn and talk to a partner to share your initial thoughts.
Meet Dr. Stayer - Veterinarians to the rescue!
Did you know that on farms, veterinarians are actually the people who test for food-borne and water-borne disease like bacteria? Meet Dr. Stayer. He is a poultry vet and a USDA-certified E. coli tester who has agreed to partner with us. He is going to help us understand how vets play a role in helping to keep our food and water safe.
Let's look at where Dr. Stayer is from. Find Hattiesburg, Mississippi on the Map.
How does E. coli spread?
Listen to Dr. Stayer share how E. coli bacteria can spread from feces (poo) to water and then to our food and why water testing really matters to prevent the spread of bacteria.
Cause and Effect
Let's apply what we just learned from Dr. Stayer. Sequence how E. coli can spread from a cow to lettuce to 6th grader's mouth. Once completed click on the green eye to check the answer.
Cause and Effect
Effect
Cause 3
Cause 2
Cause 4
Cause 1
E. coli in the dung contaminated the cow farm envrionment.
River water is the source for watering the plants.
Through run off, soil and E. coli spread to the river water.
E. coli is in the cow dung at the Livestock farm.
Produce is sold to Salad Plus. 6th graders ate salad at the picnic.
Riverside Town Map
Now look at the map of Riverside town. What do you notice about the town? How did the E. coli spread?
Look for the 6 places in Riverside Town with E-coli.
Look for the 6 places in Riverside Town with E-coli.
Drag the light around Riverside Town to see where the bacteria spread to.
Drag the light around Riverside Town to see where the bacteria spread to.
How did the E. coli spread?
level complete
next level
level 6
Water Testing Data
You learned that every year the USDA requires water to be tested. Look at the graph that shows when water testing happened at Riverside Farm.
When was the last time the water was tested?
What can we conclude?
How is water sampling tested at the farm?
Watch how water sampling is done at an agricultural farm to ensure that the water is safe. What are some things you think are important to rules to follow and why?
Water Testing Data
Look at the results of the water test below based upon the samples that were taken around the farm. What can we now conclude is the source of the E. coli spread?
Water Sample Test for E. coli - Riverside farm
Bonus: Q&A with Dr. Stayer
What advice would you give anyone interested in becoming a vet?
What is your favorite part of being a vet?
Get to know Dr. Stayer better. Check out a few questions we asked him about his job and also what it is like to be a veterinarian.
How do you become a vet?
How do vets make our world a better place?
level complete
next level
Conclusion
Search in mail
My Mail
Checking In.
Compose
Jess
Wow, great job in partnering with Dr. Stayer and figuring out what the source of the contamination was. His real-world insights were really helpful in highlighting why water matters so much in keeping our food safe. I still cannot believe that water was the root cause to the outbreak. I really thought it would be that Salad Plus was not washing their hands or keeping up to cleanliness standards. It helps to stay curious because if we had stopped at the lettuce, more people would have gotten sick. We will now be passing this case along to the Centers for Disease Control and Prevention (CDC) to help further investigate and contain this outbreak. They need a case report from us so that is your last task you need to do to help close this out. To help jog your memory, first play this game and then work on summarizing everything you learned. Remember those notes? Use those notes and make sure you have clear evidence for your claim. Good luck and I look forward to reading your reports. best, Jess
Inbox
Starred
Snoozed
Sent
Drafts
internships
Let's put the pieces together
Case Report
Hope that was a helpful review. Time to write up that report! As a helpful tip here is a video that shares how to write a strong scientific argument. Turn to your mission log. As you complete the report make sure to include a clear conclusion, supporting evidence and your reasoning that connects the dots.
Bonus: Water Safety and Sanitation
Clean water matters to our everyday lives. Choose two out of three options below to learn more about real world E. coli outbreaks through lettuce and think about how clean water plays a key role in keeping our food safe.
Center of Disease Control - List of E. coli outbreaks
News Article: What sparked an E. coli outbreak in Lettuce - NPR
Video: Newstory about a real world E. coli outbreak in lettuce.
End
Day 3&4
Day 3: An additional 10 students are absent from school. This is now a total of 15 students. The school nurse gets involved to take notes on calling parents. Day 4: 15 students and an additional 3 teachers are now out sick. Parents start to worry and start to talk to each other. The school nurse starts to wonder if it is related to the school picnic.
Day 5 -8
Day 5: Some parents are very concerned as they had to spend the night at the emergency room. One parent contacts the Department of Health after finding from the hospital that their child was tested positive for E. coli. Day 6: The Department of Health gets involved and starts to test more students in the hospital. All 15 kids who were out sick are tested positive for E. coli. Day 8: The school is contacted and asked to send a letter to all parents about the spread of E. coli from the school picnic. The Health Dept continues to investigate the source.
Produce is sold to Salad Plus. 6th graders ate the salad at the picnic.
Through run off, soil and E-coli spread into the river water.
River water is the source for watering the plants.
E-coli was found in the cow dung at the Livestock farm.
E-coli in the dung contaminated the cow farm environment.
Day 2
Morning: Five students are absent from school. When the school called to check up on their absence, parents all shared that students did not feel well due to a stomach ache and diaherea. Parents do not seem very concerned. Evening: Two teachers who went on the picnic call out sick and say that they think they have some kind of food poisoning.
Day 1
Morning: All picnic food is delivered to the school from Salad Plus and Sub- Sandwiches. During the Picnic: Students eat lunch and can pick between a salad, sandwich, chips and a drink. Some of the kids play in the river while others decide to play tag on the field. It is a really fun day. Evening: All kids get picked up from the picnic and there are no reports of any symptoms.
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Transcript
6th Grade Picnic
E. coli Detectives
Start
level 1
Remember, your mission is to gather evidence and figure out the source of the E. coli. What is causing this outbreak? A few pro tips to get you started: a) Write evidence down: You have a mission log for a reason. I always find that it is helpful to write notes so that you can come back to what you learned along the way. b) Find patterns: Notice key details and see if you can find any patterns that point to the cause of the outbreak. c) Use the process of elimination: Once you have reviewed new information, see what you can eliminate as a cause. Have fun and stay curious!
Drive to Riverside Town
Background
Welcome to Riverside town. I hope you had a safe flight here and are ready to roll up your sleeves and get to work! To start I have gathered a few pieces of background information to help you get started. Review the pieces of the file so that you can get ready to interview some students who have been impacted.
File 1: What is E. coli?
File 2: Log of Events
File 1: E. coli Video
Watch this video about E. coli. Note the full name of this bacteria and where it originates from.
What did you learn?
Background
File 1: What is E. coli?
File 2: Log of Events
File 2: Log of Events
Review the notes from the school's office. Write down possible causes of the E. coli and how many people have fallen sick. List the symptoms linked to E. coli.
Day 5
Day 2
Health Department Alerted
Initial Symptoms
Day 1
Day 3-4
School Picnic
Increase in Reports
What did you learn?
Start
In every case, the details matter and can make or break a case. Let's see how close you have been taking notes and paying attention!
Question 1/10
Question 2/10
Question 3/10
Question 4/10
Question 5/10
Question 6/10
Question 7/10
Question 8/10
Question 9/10
Question 10/10
Well Done!
Every detail matters and make a huge difference in solving this case. Especially when it comes to public health. If you got a few answers wrong that's okay. This quiz was to help you pay attention to the details. Feel free to go back and edit your notes and review the files again to make sure you have all the correct information.
level complete
next level
level 2
Mike
To:
Hey Mike! The interns are doing a great job so far even though they may be tired from the journey.
I was worred about that. Traveling can be tough for work but it's great to hear they are doing well. What's next?
Now it's time for them to interivew some of the students that got E. coli.
Aww! Gathering firsthand evidence. 🕵️♂️ It often holds the key to solving cases like this.
Definitely. It will be important for them to pay close attention to what symptoms kids experienced.
Yes AND to listen carefully to what the kids did and ate at the picnic.
Yes. A vital skill in public health is to listen, observe and ask good questions.
Mike
To:
For sure. Sounds like you are doing a great job mentoring these interns.
It's really nice having more eyes, ears and hands help out with this case.
Amazing. Let's dive into Level 2. Remember, every conversation is a clue. Listen, observe, and think critically. Good luc
Student Interviews
Listen to each of the interviews. As you listen note: a) What are the symptoms that each student shares? b) What did each kid eat and do at the picnic? c) What are the possible causes? d) What new questions do you have?
Noah
Bella
Alex
What do you know so far about this case? Discuss and write down: a) What are the symptoms each kid experienced? b) How do we know it is E. coli? c) What can you hypothesize are the possible causes of E. coli? d) How do we know it is not because kids played in the river?
GUESS The Word?
You have learned some important scientific words. Let's review some words to make sure that you truly understand the meaning.
Start
Discover the Word with a few clues
What is this word?
Good luck!
This word means the clues or hints that show there might be a sickness or health problem.
Clue 1
What is this word?
Try Another
Doctors use this word to talk about the things you feel or see that tell you might be sick, like a cough or feeling tired.
Clue 2
What is this word?
Try Another
They can be a lot of different things, like a sore throat, a fever, or a stomach ache, depending on what sickness you have.
Last Chance
congratulations!
Symptom
You have guessed the right word
Cool!
Better Luck Next Time
Symptom
The correct answer is Symptom
OOHH!
What is this word?
Good luck!
These are so small that you can't see them without a microscope, but they are alive just like plants and animals.
Clue 1
What is this word?
Try Another
They are found all over the world, in the air, soil, water, and even inside our bodies.
Clue 2
What is this word?
Try Another
They can help us by breaking down food in our stomachs or by making vitamins, while others can make us sick.
Last Chance
congratulations!
Bacteria
You have guessed the right word
Cool!
Better Luck Next Time
Bacteria
The correct answer is Bacteria
OOHH!
What is this word?
Good luck!
A piece of information that helps you figure out if something is true or what really happened in a mystery.
Clue 1
What is this word?
Try Another
When you do experiments in science, this is the information you collect from your observations or experiments to support your idea as right or wrong.
Clue 2
What is this word?
Try Another
Just like detectives look for fingerprints or footprints to solve a case, they use this to find answers.
Last Chance
congratulations!
Evidence
You have guessed the right word
Cool!
Better Luck Next Time
Evidence
The correct answer is Evidence
OOHH!
What is this word?
Good luck!
This is when you use or eat something.
Clue 1
What is this word?
Try Another
When you go to a store and buy things like toys or clothes, that's also an example because you're using money to get something.
Clue 2
What is this word?
Try Another
This idea is important because it reminds us that everything isn't unlimited. We need to be careful about how much we use so things don't run out.
Last Chance
congratulations!
Consumption
You have guessed the right word
Cool!
Better Luck Next Time
Consumption
The correct answer is Consumption
OOHH!
level complete
next level
level 3
Test Results
Table 1: Comparison of foods eaten by kids who fell sick vs. kids who did not fall sick.
Great work on those interviews, team! You've gathered some crucial firsthand accounts which are invaluable in our investigation. You might have started to form some questions about what are the differences between kids who fell sick and those who didn't. Look at the table that shares information about what all kids ate. What pattern do you observe and what can you conclude?
What did you learn?
E. Coli Testing
We also decided to test all of the food that was present at the picnic for E. coli. Look at the data below. 0 is not positive and 1 is positive. What ingredients tested positive for E. coli?
Graph 1: What foods tested positive for E. coli.
What did you learn?
level complete
next level
level 4
Salad Plus
Salad Plus Cleanliness Checklist
Many times E. coli spreads because of the mishandling of food. Things like washing of hands or not keeping up with food preparation policies like wearing gloves or keeping food at the right temperature. So we decided to review and test the sanitation practices at Salad Plus to see if it was because of food preparation. The table shows what we found.
Salad Plus
E. coli Test - No E. coli found at Salad Plus
It looks like Salad Plus is super clean and the manager keeps up with food safety practices well. All their logs show that they are doing everything right. To be triple safe though, we then tested a bunch of different places for E. coli. Look at the results of that test. What can you conclude?
What would you ask next?
Source of the Ingredients.
Well, we know the lettuce and tomato had E. coli, so if Salad Plus is clean then we gotta keep digging and figure out where the lettuce and tomato were sourced. It could be that the E. coli was there but because they are so clean there is now no trace of it. Click on the images to see where each ingredient of the salad was sourced.
Where should we go next?
Brain Break
Find the double as soon as possible!
PLAY
level complete
next level
level 5
Jess
To:
Hey Jess, So I heard that Salad Plus was clean!!
I know. I was surprised but that's what's great about science. Most of the time our hypotheses are not correct.
That's so true. It's actually not about being right. It's about continously asking questions to gather the right evidence to draw the right conclusions.
Yes but what's interesting is that we do know the lettuce and tomato in the 🥗 did test positive for E. coli.
🤢! So I guess at some point the bacteria was at Salad Plus.
Yes. But it didn't originate there. Everything was too clean. It must have traveled to Salad Plus.
So what's next?
Jess
To:
Well they found out that the 🥬 and 🍅 were sourced from Riverside Farms.
Interesting. But E. coli does not originate in vegetables.
That's right. This is why we have to now go investigate at the farm.
Oh fun! The interns really are driving all around town to investigate this case.
Yes and it's an important reminder that we have to keep digging and asking questions to get to the real source.
For sure! Off to the farm you go!
Where should we test?
We are about to go to Riverside Farm. Where do you think we should test for E-coli in that farm? Where do you predict E-coli might show up and why? Turn and talk to a partner to share your initial thoughts.
We are about to go into Riverside Farm. Where do you think we should test for E. coli on the farm? Turn and talk to a partner to share your initial thoughts.
Meet Dr. Stayer - Veterinarians to the rescue!
Did you know that on farms, veterinarians are actually the people who test for food-borne and water-borne disease like bacteria? Meet Dr. Stayer. He is a poultry vet and a USDA-certified E. coli tester who has agreed to partner with us. He is going to help us understand how vets play a role in helping to keep our food and water safe.
Let's look at where Dr. Stayer is from. Find Hattiesburg, Mississippi on the Map.
How does E. coli spread?
Listen to Dr. Stayer share how E. coli bacteria can spread from feces (poo) to water and then to our food and why water testing really matters to prevent the spread of bacteria.
Cause and Effect
Let's apply what we just learned from Dr. Stayer. Sequence how E. coli can spread from a cow to lettuce to 6th grader's mouth. Once completed click on the green eye to check the answer.
Cause and Effect
Effect
Cause 3
Cause 2
Cause 4
Cause 1
E. coli in the dung contaminated the cow farm envrionment.
River water is the source for watering the plants.
Through run off, soil and E. coli spread to the river water.
E. coli is in the cow dung at the Livestock farm.
Produce is sold to Salad Plus. 6th graders ate salad at the picnic.
Riverside Town Map
Now look at the map of Riverside town. What do you notice about the town? How did the E. coli spread?
Look for the 6 places in Riverside Town with E-coli.
Look for the 6 places in Riverside Town with E-coli.
Drag the light around Riverside Town to see where the bacteria spread to.
Drag the light around Riverside Town to see where the bacteria spread to.
How did the E. coli spread?
level complete
next level
level 6
Water Testing Data
You learned that every year the USDA requires water to be tested. Look at the graph that shows when water testing happened at Riverside Farm.
When was the last time the water was tested?
What can we conclude?
How is water sampling tested at the farm?
Watch how water sampling is done at an agricultural farm to ensure that the water is safe. What are some things you think are important to rules to follow and why?
Water Testing Data
Look at the results of the water test below based upon the samples that were taken around the farm. What can we now conclude is the source of the E. coli spread?
Water Sample Test for E. coli - Riverside farm
Bonus: Q&A with Dr. Stayer
What advice would you give anyone interested in becoming a vet?
What is your favorite part of being a vet?
Get to know Dr. Stayer better. Check out a few questions we asked him about his job and also what it is like to be a veterinarian.
How do you become a vet?
How do vets make our world a better place?
level complete
next level
Conclusion
Search in mail
My Mail
Checking In.
Compose
Jess
Wow, great job in partnering with Dr. Stayer and figuring out what the source of the contamination was. His real-world insights were really helpful in highlighting why water matters so much in keeping our food safe. I still cannot believe that water was the root cause to the outbreak. I really thought it would be that Salad Plus was not washing their hands or keeping up to cleanliness standards. It helps to stay curious because if we had stopped at the lettuce, more people would have gotten sick. We will now be passing this case along to the Centers for Disease Control and Prevention (CDC) to help further investigate and contain this outbreak. They need a case report from us so that is your last task you need to do to help close this out. To help jog your memory, first play this game and then work on summarizing everything you learned. Remember those notes? Use those notes and make sure you have clear evidence for your claim. Good luck and I look forward to reading your reports. best, Jess
Inbox
Starred
Snoozed
Sent
Drafts
internships
Let's put the pieces together
Case Report
Hope that was a helpful review. Time to write up that report! As a helpful tip here is a video that shares how to write a strong scientific argument. Turn to your mission log. As you complete the report make sure to include a clear conclusion, supporting evidence and your reasoning that connects the dots.
Bonus: Water Safety and Sanitation
Clean water matters to our everyday lives. Choose two out of three options below to learn more about real world E. coli outbreaks through lettuce and think about how clean water plays a key role in keeping our food safe.
Center of Disease Control - List of E. coli outbreaks
News Article: What sparked an E. coli outbreak in Lettuce - NPR
Video: Newstory about a real world E. coli outbreak in lettuce.
End
Day 3&4
Day 3: An additional 10 students are absent from school. This is now a total of 15 students. The school nurse gets involved to take notes on calling parents. Day 4: 15 students and an additional 3 teachers are now out sick. Parents start to worry and start to talk to each other. The school nurse starts to wonder if it is related to the school picnic.
Day 5 -8
Day 5: Some parents are very concerned as they had to spend the night at the emergency room. One parent contacts the Department of Health after finding from the hospital that their child was tested positive for E. coli. Day 6: The Department of Health gets involved and starts to test more students in the hospital. All 15 kids who were out sick are tested positive for E. coli. Day 8: The school is contacted and asked to send a letter to all parents about the spread of E. coli from the school picnic. The Health Dept continues to investigate the source.
Produce is sold to Salad Plus. 6th graders ate the salad at the picnic.
Through run off, soil and E-coli spread into the river water.
River water is the source for watering the plants.
E-coli was found in the cow dung at the Livestock farm.
E-coli in the dung contaminated the cow farm environment.
Day 2
Morning: Five students are absent from school. When the school called to check up on their absence, parents all shared that students did not feel well due to a stomach ache and diaherea. Parents do not seem very concerned. Evening: Two teachers who went on the picnic call out sick and say that they think they have some kind of food poisoning.
Day 1
Morning: All picnic food is delivered to the school from Salad Plus and Sub- Sandwiches. During the Picnic: Students eat lunch and can pick between a salad, sandwich, chips and a drink. Some of the kids play in the river while others decide to play tag on the field. It is a really fun day. Evening: All kids get picked up from the picnic and there are no reports of any symptoms.