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International Attendees

Please note: All participants at the in-person conference—presenters, attendees, exhibitors, staff members, guests, and vendors—will be required to be fully vaccinated (as defined by the CDC) at least 14 days prior to the start of the meeting. You may be asked for proof of vaccination. Proof of vaccination is your vaccination card (photo is acceptable) from the healthcare provider. Further policies can be found on the Conference Policies page.

Helpful Links

COVID-19 testing required for US entry

US Visa application procedures and estimated wait times

Visa Waiver Program

National Academies International Visitors Office

Electronic System for Travel Authorization

For those who are unable to attend the in-person meeting, #Fungal22 offers the option to register for virtual attendance.

COVID-19 entry requirements

We advise scientists traveling to the US to stay up-to-date on the latest COVID-19 testing requirements. Effective January 26, 2021, the Centers for Disease Control and Prevention will require all air passengers two years of age and over entering the United States (including US citizens and Legal Permanent Residents) to present a negative COVID-19 test, taken within three calendar days of departure, or proof of recovery from the virus within the last 90 days.

Visa applications

We also advise scientists traveling to the US to apply for a visa as early as possible—at least six months before the visa is needed. Please check with your local US consulate or embassy to find out the earliest that you may apply for a visa.

All visitors traveling to the US (including from Visa Waiver Program countries) must register their details online at least three days in advance of travel. The Department of Homeland Security (DHS) Electronic System for Travel Authorization (ESTA) is a free, automated system used to determine the eligibility of visitors to travel to the United States. It collects the same information as the paper I-94W form you usually complete when traveling to the United States. ESTA applications may be submitted at any time prior to travel, provided it is three days in advance of travel. An ESTA authorization generally will be valid for up to two years. DHS recommends that travelers submit an ESTA application as soon as they begin travel plans.

If you are NOT eligible to travel under the Visa Waiver Program you will need to:

  • Apply for a visa at least six months in advance.
  • Provide your entire trip itinerary, including travel to any countries other than the United States, at the time of visa application.
  • If your travel plans depend on early approval of the visa application, you must specify this at the time of the application.
  • Provide proof of scientific status. For example, proof that you submitted an abstract for the meeting. Do not wait until you receive notification that your abstract has been accepted before applying for a visa. It is very rare that an abstract is denied.
  • Provide a link to the meeting website and a copy of your letter of invitation.
  • Provide evidence that you are intending to return to your country of residence. This includes such things as:
    • family ties in current country of residence;
    • property ownership;
    • bank account;
    • employment contract or statement from employer showing that position will continue after the dates of the meeting.
  • Visa requirements vary by passport-issuing country and citizenship (not merely residency).

If you are experiencing significant visa delays, we encourage you to fill out the National Academies visa survey. This allows them to bring your case to the attention of the US Department of State and to track trends in visa issues among the scientific community.

Visa questions should be directed to the National Academies International Visitors Office: visas@nas.edu.

Letter of Invitation

Customized letters of invitation will be available to those who have registered for the meeting or submitted an abstract. A link to request your letter of invitation will be provided in your confirmation. For security purposes, letters of invitation can only be sent to individuals that have registered or submitted an abstract for the meeting.

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