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Learner Reviews & Feedback for Measuring and Maximizing Impact of COVID-19 Contact Tracing by Johns Hopkins University

1,283 ratings

About the Course

This course aims to provide managers and developers of contact tracing programs guidance on the most important indicators of performance of a contact tracing program, and a tool that can be used to project the likely impact of improvements in specific indicators. Students who complete the course will be proficient in using the Contact Tracing Evaluation and Strategic Support Application (ConTESSA) to estimate the impact of their contact tracing program on transmission and strategizing about how to increase their program’s impact. A secondary audience for the course will be decision makers interested in knowing more about the characteristics of effective contact tracing programs, and strategies to improve. The course is designed for individuals who are already leading contact tracing programs who have significant experience with epidemiology and public health. We strongly recommend completing this course on a laptop or a desktop rather than a phone as you’ll need to complete worksheets and open the course and the application simultaneously....

Top reviews


Sep 2, 2020

This course is an advanced level course on COVID-19. I love this course so much. From this course we know about the use of programmed apps for contact tracing. It is very helpful for job aspirants.


Aug 9, 2020

Excellent albeit difficult ( at least for me). The instructors and material provided is just great. Everybody who wants to support their community should do the course and get the qualification.

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351 - 368 of 368 Reviews for Measuring and Maximizing Impact of COVID-19 Contact Tracing

By delbec N

Mar 17, 2022

This was a tough one. OMG

By Emily P

Nov 26, 2020

The videos are a bit long

By Pattara S

Apr 22, 2021

pretty difficult for me

By Monique

Dec 20, 2020

very easy to use

By Takahide M

Jun 4, 2022

very good.

By Himanshu

Dec 20, 2020


By Simone S

Aug 20, 2021

This course was very hard for someone that have not did contessa before i had to do it over and over , plus the app ws giving trouble and they should have mad the worksheet in the section that going back and forth but this was HRAD but i did it

By Thanhgiang D

Dec 29, 2020

This was stat heavy and is difficult to follow without background knowledge. That should have been covered in the course description.

By Patrizio M

May 4, 2021

The course was okay, but the tests are difficult and far too dependent on the complicated ConTESSA app. Thanks anyway.

By Caroline G

May 17, 2022

It was a bit difficult to do some of the practical activities. I had trouble with the system at times.

By Damaris L

Oct 7, 2021

Needs more examples in order to fully understand how to use ConTessa.

By LaTonya M W

Oct 11, 2021

IIm missing something on this test....6days in!! HELP!!


Dec 6, 2020

Very challenging course.Requires 100% concentration.

By Lauri-Pekka A

Mar 18, 2021

The quiz input data and instructions were poor.

By Maimouna J R

Jul 30, 2021

The videos were very informative and helped in enriching my knowledge. Huge thanks to all the Professors. But we weren't able to submit assignments and that was really frustrating and nerve-wracking. Due to the technical issues I wasn't able to complete the course within the deadline and couldn't complete the course. I suggest Coursera to work on these technical issues.

Thank you

By g D

Aug 16, 2020

It is impossible to check your results in conTESSA exercises. I do not know if my inputs are good or no, or their answer are wrong or the version of the program is different. I can not progress in the course.

By Markus M R

Feb 22, 2022

Übersetzung stürzt alle 2 Minuten ab, die Berchnungen im Test sind nicht möglich da ConTessa nicht funktioniert und sich nicht öffnen lässt.

By سيف م ع ع ا

Apr 5, 2022