Evidence Aid’s COVID-19 project: April 2021 update




If you would like to receive these updates directly, please contact me (callen@evidenceaid.org). Anyone with questions about our work should also contact me.

This is the 31st update on Evidence Aid’s COVID-19 project and covers the month to 30 April 2021.


·     Since we started this project in March 2020, we have prepared 525 short, plain language summaries covering more than 800 systematic reviews relevant to the COVID-19 pandemic and its impact.

·     All the summaries are available in English, with many of them also available in other languages including Arabic, Chinese, French, German, Italian, Portuguese and Spanish.

·     The summaries are all freely accessible here along with links to the full reviews.

·     Given the proliferation of reviews on some topics, alongside the summaries for individual reviews, we are also producing combined summaries, which present the findings from multiple systematic reviews, making it easier to see the evidence around a single topic.

·    We continue to promote the summaries through our Twitter, Facebook and Instagram social media feeds and if you’d like to follow us or share the posts, the relevant information is at the end of this update.

In detail:

Systematic review summaries: 525 Evidence Aid summaries are now available on the website, summarising evidence from 820 systematic reviews, with 18 new or updated summaries added this month. We now have 48 combined summaries, covering 327 reviews, with 5 combined summaries added or updated this month.

Among the additions are summaries for a Cochrane Review on oxygen targets for the mechanical ventilation of patients with respiratory distress, a living review on rehabilitation for COVID-19 patients, a new combined summary on genetic variations in COVID-19 patients, an updated combined summary for environmental measures to prevent transmission of infectious diseases and new summaries on suicide and the COVID-19 pandemic and the incubation period of COVID-19.

Translations: 508 of the summaries are available in Arabic, 509 in Chinese Simplified and Portuguese, 504 in Chinese Traditional, 510 in French and Spanish, 212 in Italian and 167 in German.

Literature searches: Approximately 1000 records were screened this month, adding dozens of new reviews to our pending pile, with work ongoing on 55 review summaries and 4 combined summaries.

Volunteers: Just over year into our project, we’d like to acknowledge and thank our volunteers who continue to do amazing work for the project. They include summary writers, screeners, information specialists/librarians, web support, translators, advisors and people who download the systematic reviews and create templates for the summaries. We’ve had over 100 volunteers throughout the project from more than 20 countries. 

Social Media channels: Twitter (@Evidence Aid), Facebook (Evidence Aid – page and group) and Instagram (evidenceaid).