We are aware that there is an unofficial third-party company offering to arrange accommodation and travel for your trip to Prague. These emails are considered to be spam and should not be engaged with.
Through March 23, 2026, cancellation in writing entitles the registrant to a refund minus a $100 administrative charge. Refunds may not be issued until after the Conference.
All refunds will be paid in US Dollars.
After March 23, 2026 no refunds will be issued, but registration may be transferred to another attendee.
VAT Refunds
Delegates outside the EU may be eligible to reclaim VAT by submitting a refund claim under the EU 13th Directive scheme. For your convenience, our Independent VAT partner SimplyVAT offers a VAT refund service under the 13th Directive, and delegates are welcome to contact them directly to assist with their claims. Delegates from within the EU can normally reclaim VAT under the EU VAT refund scheme, which is available via their local tax authority’s website. Please note that ISAR itself is not involved in collecting, paying or returning VAT.
The International Society for Antiviral Research (ISAR) is an internationally recognized organization for scientists involved in basic, applied, and clinical aspects of antiviral research. The Society main event is the annual International Conference on Antiviral Research (ICAR), a truly interdisciplinary meeting which attracts the interest of chemists, biologists, and clinicians.