New Impact Factor values for scientific journals for the year 2025 have been published in the Journal Citation Reports database, owned by Clarivate Analytics.
Postępy Higieny i Medycyny Doświadczalnej recorded a further increase in its Impact Factor – from 0.3 to 0.4. The Impact Factor for Archivum Immunologiae et Therapiae Experimentalis reached 3.2.
The Impact Factors for individual journals can be found at: https://jcr.clarivate.com/jcr/home, whilst a full list of papers published by staff at the Hirszfeld Institute in 2025, with current Impact Factor values, is available on the IIET PAS website under the Reports and Publications tab: https://hirszfeld.pl/instytut/raporty-i-publikacje/.