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Join the eCOV study! 

We need your help to better understand COVID-19 vaccine effectiveness. Every participant counts.

Study organized by

More participants means better findings

of 3000 participants

Join the eCOV study! 

We need your help to better understand COVID-19 testing and vaccine effectiveness. Every participant counts.

Join study

More participants means better findings

of 3000 participants

The eCOV study is easy, secure, and fully digital.

Just answer a few simple health questions on your phone, tablet, or computer.

Why it’s important

Our research team is working to evaluate how COVID-19 testing and vaccines work in real life. By joining the eCOV study, you can help them better understand:

  • The effectiveness of coronavirus vaccines
  • Side effects to coronavirus vaccines
  • Common symptoms of COVID-19
  • Frequency and types of testing

Your participation in the eCOV study provides the research community with the data they need to improve testing and vaccination strategies. For example, researchers can use this information to find the most effective intervals between vaccine doses.

Who can participate

The eCOV study is open to anyone over the age of 18. You’re welcome to join regardless of whether or not you received a coronavirus vaccine or tested positive for COVID-19. In fact, we need diverse participants with unique experiences for a good comparison. 

What to expect

You can get started by registering with Data4Life. Once you’ve created an account, we’ll send you the initial eCOV questionnaire. It consists of 21 general health questions and only takes about 5 minutes. 

Then we’ll ask you to give us a weekly update for at least 2 months so we can gain valuable insights. You’ll receive an email notification and a few follow-up questions on testing and vaccines. Every question you answer helps bring us closer to understanding COVID-19.

Study details

Short name
eCOV study

Official name
COVID-19 study on vaccinated and unvaccinated adults

Investigator
PD Dr. med. Cornelius Remschmidt, Chief Medical Officer at Data4Life

Study physician/ operational management
Nils Hohmuth

Scientific advisor
PD. Dr. Rasmus Leistner

Full study information
View information for participants

Timeframe
May 2021 - May 2023

Participants:
Adults (18+ years old)

Requirements
Browser, internet access

Ethics approval
Ethics committee of the Berlin Chamber of Physicians (Eth-11/22)

Insights

Once you join the eCOV study, you’ll gain access to charts and statistics about study participants, age groups, regions, and more.

FAQs

The "COVID-19 study for vaccinated and unvaccinated adults," or eCOV study for short, aims to better understand the effectiveness of COVID-19 testing and vaccines.

The study is completely digital and involves answering simple health questions about COVID-19 symptoms, vaccines, side effects, and testing.

By participating, you can help researchers gain insights on COVID-19 testing and vaccines. Participation is voluntary, and every contribution counts.

The eCOV study is conducted by Data4Life and supported by the Hasso Plattner Foundation in Potsdam. The lead physician of the study is PD Dr. Cornelius Remschmidt, Chief Medical Officer at Data4Life.

The study is open to anyone over the age of 18.

For meaningful results, we need a good representation of the entire population. You’re welcome to participate regardless of whether or not you already had COVID-19, have been vaccinated, or have pre-existing conditions.

Study participation is purely digital. All you have to do is answer a few simple questions. You can do this from the comfort of your own home using your smartphone, tablet, or computer. There are no physical requirements or appointments.

Simply create a personal Data4Life account to get started.

The eCov questions relate to both your general health and coronavirus. This includes questions about past COVID-19 infections, vaccination, side effects, and COVID-19 testing.

The initial eCOV questionnaire contains a total of 21 questions. It takes no more than 5 minutes to answer. You will then be asked a few follow-up questions each week. This requires around 2 minutes per week.

Ideally, all participants would participate for at least 8 weeks. You are welcome to participate for longer and continue supporting vaccine research.

All information in your Data4Life account is private and encrypted.

Before researchers see your answers to the eCOV questions, we remove all personal identifiers (e.g. name, email address, and telephone number). This step, called pseudonymization, makes data useful for research without disclosing your identity.

You can find more information about how we maximize the security of your data here.

As soon as enough data is available, we will analyze it and publish the results in a peer reviewed journal.

Yes. The study was extensively reviewed and approved by the ethics committee of the Berlin Chamber of Physicians (Ärztekammer Berlin).

Participating for at least 8 weeks allows researchers to get a full picture and gain important insights on coronavirus infections, tests, and vaccines. If you would like to drop out earlier, you're free to do so at any time. We will do our best to take your previous answers into account.

If you have further questions or technical problems, please visit our help center.

Data Privacy

Your privacy matters to us, and we take a number of steps designed to safeguard your sensitive health data. All information in your Data4Life account is end-to-end encrypted and protected by two-factor authentication.

Before researchers see any answers to study questions, we remove all personal identifiers such as your name, email address, and telephone number in a process called pseudonymization.

For more information, visit our help center.

You can make a difference. Join the eCOV study today.

At Data4Life, we believe digital studies can transform the diagnosis, prevention, and treatment of diseases like COVID-19.

More participants means better findings

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