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Highlights of ASH in Latin America

Health and Safety Protocols

We encourage you to monitor this page to stay abreast of the latest updates on the health and safety protocols for the 2023 Highlights of ASH in Latin America meeting. ASH is continually monitoring the status of the COVID-19 pandemic and additional information regarding the on-site health and safety protocols will be posted to this webpage as it becomes available.


COVID-19 Vaccination Requirement for All Attendees: The safety of meeting attendees is ASH’s top priority, and we believe the most effective way to ensure the safety of all attendees is vaccination against COVID-19 and the wearing of protective masks. Please note that proof of vaccination, or proof of a negative COVID test within 24 hours of arrival, is required for all in-person meeting attendees; this proof must be shown upon arrival in order to pick up your badge. Please read the additional information about these requirements, how to verify vaccination status, and other safety measures below. We highly encourage those who are vaccinated to upload your proof PRIOR to arriving in São Paulo.

Attendees should be aware that, while ASH will make every effort to reduce the risk of COVID-19 transmission on site, it is possible that attendees will encounter people in airports, hotels, and around the meeting who could potentially carry the virus, which is why ASH is requiring these protocols for their own safety, as well as the safety of others.

Protective Masks

The wearing of protective masks is optional but strongly encouraged.

For the purposes of right of entry to the Highlights of ASH in Asia-Pacific, a person is considered fully vaccinated:

  • Two weeks after receiving the second dose in a two-dose series, such as the Pfizer and Moderna vaccines; or
  • Two weeks after receiving a single-dose vaccine, such as the Janssen (Johnson & Johnson) vaccine.

If your vaccine is not on the World Health Organization (WHO) list of eligible vaccines you must provide a negative COVID test result, taken 24 hours before your arrival to the meeting.

ASH will accept a full course of immunization with any vaccine that has been validated by the World Health Organization (WHO) or approved by the U.S. Food and Drug Administration (FDA). The product may be either fully authorized or authorized under an emergency use authorization or equivalent at the time of travel (see list of eligible vaccines). Vaccination with an agent that is not included on the WHO or FDA website as authorized will not be accepted.

Prior to arriving on-site, attendees will be asked to provide proof that they are fully vaccinated with a vaccine approved by the WHO or FDA via a third-party vendor that ASH has contracted with to manage the verification process. More detailed instructions are available below.

In addition to all attendees, all ASH staff working at the meeting will be fully vaccinated; however, ASH cannot guarantee the vaccination status of local hotel and vendor staff.

This service is available to all attendees regardless of where you live.

Safe Expo offers a web-based portal for you to upload your proof of vaccination. Note: Safe Expo does not retain your proof of vaccination once it has been reviewed and approved.

  • Step 1: If you don’t already have an image of your vaccination document, make sure to take a clear photo and save it to the device you are using to complete this process.
  • Step 2: Navigate to the ASH vaccination verification upload portal and select Start.
  • Step 3: Enter your email address.
  • Step 4: Enter your name.
  • Step 5: Select “Upload Now” to get to the upload page and select “Upload Now” again.
  • Step 6: Select “Choose File” and navigate to the JPEG or PNG image of your vaccination documentation stored on your computer or device.
  • Step 7: Select the image file and click “Upload.” Note: JPEG and PNG are the only acceptable file formats for upload.
  • Step 8: Verify that your image has uploaded correctly and displays in the image preview box and select “Next.”

You will then be taken to a page indicating that your proof of vaccination has been uploaded. Your document will be reviewed within 2 business days. Once approved, you will receive an email notice with your green health pass PDF. You will need an electronic or paper copy of your green health pass PDF, along with a picture ID, when you arrive at the JW Marriott Hanoi to pick up your registration badge.

If your green health pass PDF does not arrive via email confirmation in 1-2 business days, you may return to the portal and re-enter your email address to check on the status of your verification.

Need help? Contact [email protected] for assistance.

Note: The approval email might get caught in your spam filter, so please check your spam folder if you have not received your confirmation. Your email will come from [email protected].

Public health guidance on preventing the transmission of COVID-19 continues to evolve, and ASH will base its on-site protocols on the latest guidance from the CDC in addition to local regulations in Vietnam.

While surgical masks will be provided on site, attendees are welcome to bring their own mask of choice. Surgical, N95, and KN95 masks are strongly preferred. Gaiters, bandanas, and masks with exhalation valves will not be accepted.

Attendees who test positive for COVID-19 will not be allowed to attend sessions. ASH Staff on site should be notified via email at [email protected] and will be available to provide assistance to individuals who test positive.