Evidence Aid’s COVID-19 project: May 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 32nd update on Evidence Aid’s COVID-19 project and covers the month to 28 May 2021.


  • Since we started this project in March 2020, we have prepared more than 530 short, plain language summaries covering more than 830 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.
  • Alongside our summaries for individual reviews, our combined summaries present the evidence from multiple systematic reviews of a single topic in a single summary.
  • We are promoting 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: 531 Evidence Aid summaries are now available on the website, summarising evidence from more than 830 systematic reviews, with 6 new or updated summaries added this month. We now have 49 combined summaries, covering 327 reviews, with 1 combined summary added this month.

Among the additions this month are summaries of the use of lung ultrasoung to diagnose COVID-19, whether age is a risk factor for severe outcomes of COVID-19, a narrative review about telehealth for sport and exercise,  supply chain resilience and modelling, and an updated combined summary for mental health impacts of COVID-19 on healthcare workers.

Translations: 523 of the summaries are available in Arabic, Chinese Simplified and Portuguese, 516 in Chinese Traditional, 516 in French and 524 Spanish, 267 in Italian and 219 in German.

Literature searches: Approximately 1000 records were screened this month, adding dozens of new reviews to our pending pile, with work ongoing on 45 review summaries and 4 combined summaries.

Volunteers: Our volunteers continue to do amazing work for the project, contributing to searching, screening and downloading reviews, preparing and writing summaries, providing web support, and advising on translations. We’ve had more than 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).