The health and safety of all COSYNE conference attendees remain our top priority at COSYNE 2026. It is no longer necessary to present proof of a negative COVID-19 test or vaccination when entering Portugal. This page will be updated if protocols change.

The last update to this page was made on November 3, 2025.

HEALTH & SAFETY AT COSYNE 2026

Attendees and Exhibitors at COSYNE 2026 are asked to respect and observe the following guidelines:

1. Vaccinate if you can.

2. Don’t travel if you are sick.

3. Wear a high-quality mask indoors.

4. Regularly wash and sanitize your hands.

5. Avoid touching your eyes, nose, and mouth with unwashed hands.

6. Test when you arrive and at least once after.

If you are infected during your visit to Portugal, you should isolate for 5 days, may miss some or all of the meeting, and may not be able to fly home until you can produce a negative test.