COVID-19 Evidence Alerts
from McMaster PLUSTM

Current best evidence for clinical care (more info)

Terms & Conditions

COVID-19 Evidence Alerts is a service made available by McMaster University's Health Information Research Unit that incorporates the McMasterPLUSTM email alerting system and searchable database of best evidence from the health care literature.

Use of this website. Please read the following Website Terms and Conditions, which relate to information regarding general use of this website. By using this website, you are agreeing to these terms and conditions. From time to time we may change these terms and conditions, and will post revisions on our website. We recommend that you read these terms and conditions regularly.

Privacy. Use of the data that you provide us, or which is collected by us on this website, is governed by our Privacy Policy.

Access to COVID-19 Evidence Alerts. We try to ensure that website availability is uninterrupted and that transmissions will be error-free. However, we cannot, due to the nature of the internet, guarantee that your access will not be suspended or restricted from time to time including to allow for repairs, maintenance, or the introduction of new facilities or services. We of course try to limit the frequency and duration of any suspension or restriction. At the moment access to COVID-19 Evidence Alerts is free and such access is at our discretion and may be changed without notice.

Accounts and Passwords. As a registered user of COVID-19 Evidence Alerts, you and only you will be allowed to use COVID-19 Evidence Alerts by the details which are registered with us for as long as we allow access. Personal accounts therefore may not be shared.

Intellectual property rights. The content, layout, design, data, and graphics on this website are protected by Canadian and other international copyright laws. Other than downloading a small proportion of content, strictly for your personal, non-commercial use, or where this amounts to "fair dealing", no part of the website may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), without our prior written consent. Any authorized uses of content must include the customary bibliographic citation, including author attribution, date, article, article title, and (if applicable) the copyright notices.

The McMaster University trademarks and logos are strictly protected. Any use including framing, metatags, or other text using the McMaster University trademarks (and other trademarks displayed) is strictly prohibited without the owners’ express written consent.

Links. This website contains links including hyperlinks which may take you outside COVID-19 Evidence Alerts. Links are provided for your convenience, and an inclusion of any link does not imply our endorsement or approval of the linked website, its operator, or its content. We are not responsible for any website other than this one.


The information contained on COVID-19 Evidence Alerts is intended for health care professionals and is provided on an "as is" basis without warranty of any kind, express or implied.

COVID-19 Evidence Alerts provides an educational service designed to alert users to important new research; however, we cannot warrant its accuracy. It is intended to support evidence-based decision making, by providing links to published research reports about the diagnosis, treatment, prediction and prognosis, etiology, quality improvement and economics. However, "evidence does not make decisions"*. Readers making decisions about the care of their patients must take into account the limitations of evidence from research as well as the unique nature of their patients' circumstances and wishes. Readers should also be aware that professionals in the field may have different opinions. Because of this fact and also because of regular advances in health care research, we strongly recommend that readers independently verify any information they choose to rely on. Ultimately it is the reader's responsibility to make their own professional judgments.

COVID-19 Evidence Alerts attempts to provide access to the best new health care research about COVID-19. It does not report all research but uses explicit criteria to define a subset of published research that is likely to be valid and ready for clinical attention. Practicing raters then provide their assessments of the relevance and newsworthiness of the reports through an online review process, the McMaster Online Rating of Evidence (MORETM). Individual users who receive these reviews must then apply their own judgment concerning the strength and applicability of this evidence to their own patients.

Description or reference to a product or publication does not imply endorsement of that product or publication.

To the fullest extent permitted by law, McMaster University is not responsible for any losses, injury or damage caused to any person or property (including under contract, by negligence, product liability or otherwise) whether they be direct or indirect, special, incidental or consequential, resulting from the application of the information on COVID-19 Evidence Alerts.

*Haynes RB, Devereaux PJ, Guyatt GH. Physicians and patients' choices in evidence-based practice. Evidence does not make decisions, people do [Editorial]. BMJ 2002;324:1350.

Browsers. Please note: If you are using an "offline browser" that allow you to download content from a site and read it later, please be aware that this is subject to you ensuring that this amounts to only a small proportion of content, strictly for your personal, non-commercial use, or where this amounts to "fair dealing".

Your conduct. You must not use the website in any way that causes or is likely to cause the website or access to it to be interrupted, damaged, or impaired in any way. You understand that you are solely responsible for all electronic communications and contents sent from your computer to us. You must use the website for lawful purposes only. You must not use the website for any of the following:

Governing law. These terms and conditions shall be governed and construed in accordance with the laws of Ontario, Canada, whose courts shall have exclusive jurisdiction.