The Andes virus cluster reported in May 2026 underscored the need to further advance ANDV and ANDV-relevant hantavirus research to strengthen preparedness and response capacities, including concrete research needs that can be addressed through access to specialised research infrastructure (RI) services.
ISIDORe II is therefore pleased to announce the launch of its first Transnational Access (TNA) call for proposals, dedicated to Andes virus (ANDV) and ANDV-relevant hantavirus research. Through this call, researchers will be able to access, free of charge, the expertise, laboratory facilities and services offered by Europe’s leading research infrastructures to advance preparedness research on ANDV and, where clearly justified, other hantaviruses relevant to ANDV research.
Three research priority areas
The call focuses on Andes virus (ANDV; Orthohantavirus andesense). Work involving another orthohantavirus may be considered only when that virus is used to address a defined ANDV-relevant question, for example as an experimentally justified surrogate, comparator virus, reagent source, assay control or model-development tool. Standalone work on other hantaviruses is outside the scope of this call.
Applicants are invited to propose projects addressing one or more of the following priority areas:
- Therapeutic and non-vaccine prophylactic candidate evaluation, including antiviral candidates, antibody-based approaches and other promising countermeasures supported by preliminary evidence.
- Diagnostic tools, assays, reagents and reference materials, with an emphasis on improving diagnostic performance, standardisation and access to research tools.
- ANDV-relevant models, experimental systems and readouts, supporting studies on viral pathogenesis, host response, tropism and medical countermeasure development.
Access Europe’s Research Infrastructures through EU-funded Transnational Access
Transnational Access (TNA) enables researchers to obtain free-of-charge access to specialised research infrastructure services rather than receiving a financial grant. Successful applicants will benefit from the expertise, technologies and facilities available through the ISIDORe service catalogue, with ISIDORe covering the costs of the requested services.
The TNA mechanism is a cornerstone of ISIDORe, supporting research by connecting scientists with high-quality research infrastructures across Europe. It contributes to accelerating the development of medical countermeasures while promoting collaboration, data sharing and scientific excellence in pandemic preparedness research.
Who can apply?
The call is open to researchers from universities, public research organisations, public-health research bodies, industry, SMEs and other research-performing organisations. Access will follow Horizon Europe Transnational Access rules, with priority given to applicants who did not receive support under the first ISIDORe project.
Applicants are invited to submit their proposals through the ISIDORe application system. They are encouraged to download the full call text before applying, as it includes the detailed scope, eligibility conditions and application requirements.
Details on the services offered, the application process and contact information are available on this page:
Register for our information webinar
ISIDORe II is organising an information webinar to provide you with information about this call for proposals and its application modalities, as well as to answer your questions.
Participation in the event is free, please register here: https://forms.gle/BSb2cRfDWnevakjd8
Date: 28 September 2026 – 2-3:30 PM CEST
Zoom link: https://us06web.zoom.us/j/81418594472?pwd=3TjaJfSiorM6QQA9eZHvhrrf3S8UwV.1
Agenda:
- ISIDORe II project overview
- Hantavirus call for proposals: scope and eligibility criteria
- Relevant ISIDORe II services
- Application process and evaluation criteria
- Key requirements & user support