COVID-19 Contact Tracing complete course is currently being offered by Johns Hopkins University through Coursera platform and is being taught by Emily Gurley.

About this Course

In this introductory course, students will learn about the science of SARS-CoV-2 , including the infectious period, the clinical presentation of COVID-19, and the evidence for how SARS-CoV-2 is transmitted from person-to-person and why contact tracing can be such an effective public health intervention. Students will learn about how contact tracing is done, including how to build rapport with cases, identify their contacts, and support both cases and their contacts to stop transmission in their communities. The course will also cover several important ethical considerations around contact tracing, isolation, and quarantine. Finally, the course will identify some of the most common barriers to contact tracing efforts -- along with strategies to overcome them.

Skills You Will Gain

  • Ethics
  • Active Listening
  • Public Health
  • Contact Tracing
  • Epidemiology

Also Check: How to Apply for Coursera Financial Aid


COVID-19 Contact Tracing Final Assessment Answers - Coursera!


Question 1) From where did the SARS-CoV-2 virus emerge?  
  •  A gorilla with the virus bit a human 
  •  It is a bat virus that was able to infect humans 
  •  It was intentionally designed in a laboratory 

Question 2) Who is at increased risk for severe disease?  Select all that apply
  •  People who are obese 
  •  People aged 65 and over 
  •  People with diabetes 
  •  People with high blood pressure (hypertension) 
  •  Young women aged 14-19 
  •  Children under the age of 12 

Question 3) COVID-19 is caused by the _____ virus.
  • MERS-CoV
  • SARS-CoV 
  • Influenza
  • SARS-CoV-2 

Question 4) Sometimes, people infected with SARS-CoV-2 never show signs or symptoms. This is called a(n) ____________ infection. 
  • Pre-symptomatic 
  • Asymptomatic 
  • Severe
  • Symptomatic

Question 5) Which of the following are common signs and symptoms of COVID-19? Select all that apply
  •  Cough
  •  Fever 
  •  Full body rash 
  •  Night sweats
  •  Sudden weight loss
  •  Muscle pain (myalgia)
  •  Sore throat

Question 6) Which of these COVID-19 symptoms require immediate and urgent care?  Select all that apply
  • Trouble breathing
  • Persistent pain or pressure in the chest 
  • Fever
  • Sore throat
  • Blue or greyish lips or face 
  • Headache
  • Muscle pain
  • New confusion or inability to arouse

Question 7) The definition of infectious period is: 
  •  The time during which a person sick with COVID-19 can infect others 
  •  The time during which someone is sick with COVID-19 but does not know it yet
  •  The time between infection with COVID-19 to the onset of symptoms 

Question 8) Typically, someone with COVID-19 is  contagious to others: 
  •  In the 2 days before they develop symptoms and throughout their illness 
  •  Only while they are showing signs and symptoms 
  •  Usually only when they have severe illness 

Question 9) The most common test used to diagnose an active case of COVID-19 is:  
  •  A PCR test to look for viral RNA in a nasal swab 
  •  A PCR test to look for viral RNA in blood 
  •  A test to identify antibodies in blood

Question 10) If you had COVID-19, you would be most likely to infect: 
  •  Someone you passed on the street
  •  Co-worker who sits in the office next door 
  •  Your spouse

Question 11) How SARS-CoV-2 is transmitted between people?
  • Droplets from an infected person landing on a floor, which another person then steps onto 
  • Droplets and aerosols from an infected person entering another person’s mouth, nose, or eyes
  • Ticks and spiders 

Question 12) The incubation period of COVID-19 is: 
  • Unpredictable and unknowable
  • Usually 2-3 days, with many lasting up to 7 days 
  • Usually 14 days  
  • Usually five days, but can be as short as two days and as long as 14 days 

Question 13) Which of the following statements is true about contact tracing for COVID-19?  
  • Preventing just one case of COVID-19 can have an impact on reducing the total number of cases over time. 
  • Identifying contacts before they become infectious is very difficult to do in such a short time. So contact tracing will not help stop COVID-19 transmission.

Question 14) Mr. Achebe was told that he tested positive for COVID-19. Which of the following persons would be considered a “contact” of his?  Select all that apply
  •  Mr. Achebe’s cousin who has been leaving premade lunches for him on the front step while he has been ill. 
  •  Mr. Achebe’s neighbor who visited the house to talk with him for an hour the day before Mr. Achebe began to feel bad 
  •  Mr. Achebe’s neighbor who watched television with him four days before Mr. Achebe began to feel bad 
  •  Mr. Achebe’s daughter and sons who live with him 

Question 15) Ms. Kim has COVID-19 and her daughter, Olivia, took care of her when she first became ill. When you talk to Olivia, you ask her to __________ as she has been exposed to Ms. Kim and could become infectious.  You ask Ms. Kim to ___________ so as not to infect others. 
  • Isolate, quarantine 
  • Quarantine, isolate 
  • Stop caring for her mother, isolate 
  • Isolate, isolate 
  • Wear a mask, quarantine 

Question 16) Jordan has coronavirus and tells you their cough began on May 10. What date would be the earliest possible day that they could end their isolation?  
  • May 24
  • May 17
  • May 20

Question 17) You are talking to Mr. Reyes, who tested positive for COVID-19 and tells you his symptoms began on July 1. During a regular follow up call on July 11, he reports that he hasn’t had a fever in 2 days and that most of his symptoms are completely gone. Which statement is correct?    
  •  You apologize to him because he should not have been in isolation this long. He could have stopped isolating as soon as he started to feel better. 
  •  He is able to safely end isolation, since ten days have passed since his symptoms began, his other symptoms have improved, and he has not had a fever for at least 24 hours.
  •  He is able to safely end isolation, since ten days have passed since his symptoms began. 
  •  Even though he is feeling better and it has been ten days since his symptoms started, Mr. Reyes should stay in isolation since he still has some symptoms. 

Question 18) When talking to a case and identifying their contacts, what suggestion might you make to help them remember activities that they did recently? 
  •  The case could look at social media or their text messages to help them remember. 
  •  You could ask the case to talk with their friends and call you back right away. 
  •  The case could three-way call their family to help them remember. 

Question 19) What is the first step of calling a case? 
  • Ask about their symptoms 
  • Ask about their contacts 
  • Introduce yourself as calling from the health department 
  • Understand their barriers to isolation 

Question 20) Mr. Chowdury attended a gathering on June 1 where he was in close contact with a case of COVID-19. Assuming that Mr. Chowdury does not develop any symptoms, when can Mr. Chowdury safely end his quarantine? 
  • June 8
  • June 21
  • June 11

Question 21) Which of the following are venues or scenarios where SARS-CoV-2 can be transmitted very efficiently to many people?  Select all that apply
  • A large public park where a few families are playing separately 
  • A nursing home
  • A shelter for the homeless 
  • A college dormitory
  • A restaurant where they offer curbside pick up 

Question 22) What question(s) might you ask to better understand the beginning and end of the infectious period for someone ill with COVID-19? Select all that apply
  • Do you have romantic partners? 
  • What date did your fever stop without any medications? 
  • Do you have diabetes or hypertension?    
  • What date did you first start to feel ill? 
  • Before you got sick, what did you do and who did you see? 

Question 23) In which of the following scenarios would a person be considered a contact of a case?  Select all that apply
  • People in the same household as the case 
  • Person who dropped off medications in the case’s mailbox  
  • Person who did not use gloves to pick up a used tissue of the case and then did not wash their hands after 
  • Person who talked with the case in their homes for 8 minutes  

Question 24) Which of the following are resources that someone might need in order to successfully isolate or quarantine themselves?  Select all that apply
  • Laundry services
  • A place to live separately from other people in their household 
  • Food
  • Medicine
  • A ride to the grocery store 

Question 25) Which of the following statements is true about contact tracing?  Select all that apply
  •  Contact tracing is a standard public health tool used for many decades to control the spread of many different infectious diseases 
  •  Contact tracing is a new strategy that has been developed to fight the COVID-19 pandemic 
  •  Contact tracing was used to control and end a large outbreak of Ebola in West Africa 

Question 26) If contact tracing serves as a public good and is based on the principles of justice, which of the following is true? 
  • You must attempt to identify and trace all contacts, regardless of where they live or who they are. 
  • Contact tracers cannot ask people to isolate or quarantine because this violates the idea of justice. 
  • It is okay to not follow up with contacts who are elderly and may have difficulty speaking with you by phone. 

Question 27) In your role as a contact tracer, you will ask cases about private information. Imagine that you are interviewing Mr. Lawrence, a 45-year-old computer programmer. Examples of relevant and private information you might ask him could include:  Select all that apply
  •  Whether Mr. Lawrence visited other people recently
  •  Which college Mr. Lawrence attended
  •  Who Mr. Lawrence spent time with while he was ill 
  •  Who visited Mr. Lawrence’s house right before he was ill

Question 28) The difference between private and confidential information is that: 
  • Confidential information includes information about a person’s medical history, including a positive COVID-19 test, but private information includes details of their personal life
  • Confidential information about a case or contact can be shared with their family and friends, but private information cannot be shared with anyone else
  • Contact tracers will learn confidential but not private information during their calls 

Question 29) When you are talking to a contact, they disclose to you that they are an undocumented worker. In this scenario you should: 
  •  Remind them that they should not be working without the proper paperwork. 
  •  Notify your supervisor immediately. Contact tracing is a service that is only available for citizens. 
  •  Nothing special. Inform them that they had close contact of someone with COVID-19.  

Question 30) Some technologies that may be used in case investigation and contact tracing include: Select all that apply
  • Automated text messages that ask cases and contacts about their symptoms daily 
  • Phones that beep when someone with COVID-19 is nearby
  • Apps that can check people’s temperature while they sleep 
  • Automatically sending cases or contacts links to social services to help them isolate and quarantine 

Question 31) Why is building rapport with cases and contacts important for contact tracing? Select all that apply
  • To help them understand that you are in charge 
  •  To help collect complete, accurate information from them 
  •  To help increase the chances that they will effectively isolate and quarantine.
  •  To help educate them about SARS-CoV-2 and COVID-19

Question 32) Is the following a need or an emotion?  

“I don’t have a safe place to live right now.” 
  • Emotion
  • Need

Question 33) Is this an open, closed, probing or leading question?  

“Did you have a sore throat yesterday?”
  • Leading
  • Closed
  • Probing
  • Open

Question 34) You are speaking to a case and explaining that they will likely need to isolate for several more days. They respond by saying, “No way! I can’t do that. I need to go to work” Which option would be the best response? 
  •  “I know, it’s really difficult to do so maybe it’d be OK if you didn’t.” 
  • “I hear you when you say you need to go to work. This is difficult  for everyone. What other reasons will make it difficult for you to stay home for this long?”
  • “I’m sorry but we need you to do this.” 

Question 35) Is this an open, closed, probing or leading question?

“You said that you were feeling unwell today. What symptoms are you having?” Select all that apply
  • Open
  • Leading
  • Probing
  • Closed

Question 36) Is this an open, closed, probing or leading question?  

“You didn’t have a fever, did you?” Select all that apply
  • Closed
  • Probing
  • Leading
  • Open

Question 37) In the following exchange, which active listening tool is Jacob using: paraphrasing or reflecting?  

Contact: Geez, how could I be sick? I’ve been doing everything I can to avoid this. You’ve got to be kidding me!” 

Jacob: You’re angry that you spent time nearby someone with coronavirus and upset that this is happening.
  • Paraphrasing
  • Reflecting

Question 38) Which of the following statements might build rapport with a case or contact? 
  • “I know what you mean” 
  •  “I hear you when you say” 
  • “Why did you do that?”
  • “I know how you feel” 

Question 39) A case answers the phone and does not appear to speak English. They hand the phone to their teenage daughter. What should you do? 
  • Thank the daughter and accept her help to translate the conversation so that you can quickly gather the names of their close contacts 
  • Thank the daughter for her offer but let her know that you will need to use a translation service to talk to her dad 

Question 40) Jacob is sick with COVID-19. He does not control who comes into his home because he lives with roommates. What next steps could a contact tracer take to help Jacob? 
  •  Assist Jacob with connecting to resources that could find him another living situation while he is able to infect others. 
  •  Offer to talk with Jacob’s housemates so that you can explain the importance of the situation. 
  •  Insist that Jacob stay in his basement but still use the shared kitchen and bathroom.

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