News & updates
Here you can find any updates regarding the KlebPhaCol collection - from associated publications to resource additions to upcoming meetings.
The KlebPhaCol manuscript has been released!
Abstract
The growing threat of multidrug-resistant Klebsiella pneumoniae, coupled with its role in gut colonisation, has intensified the search for new treatments, including bacteriophage therapy. Despite increasing documentation of Klebsiella-targeting phages, clinical applications remain limited, with key phage–bacteria interactions still poorly understood. A major obstacle is fragmented access to well-characterised phage–bacteria pairings, restricting the collective advancement of therapeutic and mechanistic insights. To address this gap, we created the Klebsiella Phage Collection (KlebPhaCol), an open resource comprising 52 phages and 74 Klebsiella isolates, characterised at phenotypic and genomic levels. These phages span six families—including a novel family, Felixviridae, associated with the human gut—and target 20 sequence types (including ST258, ST11, and ST14) and 19 capsular-locus types (including KL1 and KL2), across 6 Klebsiella species. Freely accessible at www.klebphacol.org, KlebPhaCol invites the scientific community to both use and contribute to this resource, fostering collaborative research and a deeper understanding of Klebsiella-phage interactions beyond therapeutic use.
Changes to the collection shipments
Posted on November 6th 2025
Starting with our next shipment batch in November 2025, we will be introducing a small fee to help cover packaging and processing costs.
A fee of GBP 50 will apply to standard requests (including 1–52 phages and up to 10 strains).
For larger requests involving more than 10 strains, a fee of GBP 100 will apply.
Please note that shipping costs will continue to be the responsibility of the requester.
Once a collection request has been submitted, payment details will be provided when the shipment is being organised.
Still have questions? Explore our FAQs
Our proposed new Klebsiella phage family got approved: Felixviridae
One of the KlebPhaCol phages, RothD did not have any previously classified close relatives. We therefore sought to classify this phage and submitted the proposal for a new family, Felixviridae, encompassing two new genera, Nakavirus (and a species within this: Nakavirus sapi - where RothD belongs), and Chronisvirus (including one species: Chronisvirus chronis - where previously published phage isolate vB_Kpn_Chronis fits in).
The KlebPhaCol prepint has been released!
Abstract
The growing threat of multidrug-resistant Klebsiella pneumoniae, coupled with its role in gut colonisation, has intensified the search for new treatments, including bacteriophage therapy. Despite increasing documentation of Klebsiella-targeting phages, clinical applications remain limited, with key phage-bacteria interactions still poorly understood. A major obstacle is fragmented access to well-characterised phage-bacteria pairings, restricting the collective advancement of therapeutic and mechanistic insights. To address this gap, we created the Klebsiella Phage Collection (KlebPhaCol), an open-source resource comprising 53 phages and 74 Klebsiella isolates, all fully characterised. These phages span five families – including a novel order, Felixvirales, associated with the human gut – and target 27 sequence types (including ST258, ST11, ST14) and 28 capsular-locus types (including KL1 and KL2), across six Klebsiella species. Freely accessible at www.klebphacol.org, KlebPhaCol invites the scientific community to both use and contribute to this resource, fostering collaborative research and a deeper understanding of Klebsiella-phage interactions beyond therapeutic use.
Keywords: phage therapy, open-source, biobank, Klebsiella spp., antibiotic resistance, gut phages.