Evidence map›Paper›PMID 41588212›Full record

ArticleCommunications biology2026

Oseltamivir and baloxavir monotherapy and combination therapy efficacy against clade 2.3.4.4b A(H5N1) influenza virus infection in ferrets.

Jessica A Belser, Nicole Brock, Xiangjie Sun, Troy J Kieran, Joanna A Pulit-Penaloza, Claudia Pappas, Hui Zeng, Larisa V Gubareva, Timothy M Uyeki, Taronna R Maines

Abstract read
In one paragraph

Article in Communications biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Jessica A BelserInfluenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA. jbelser@cdc.gov.ORCID http://orcid.org/0000-0002-0755-7368
Nicole BrockInfluenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Xiangjie SunInfluenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA.ORCID http://orcid.org/0000-0002-9872-1337
Troy J KieranInfluenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA.ORCID http://orcid.org/0000-0002-3711-0727
Joanna A Pulit-PenalozaInfluenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA.ORCID http://orcid.org/0000-0002-2187-5872
Claudia PappasInfluenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Hui ZengInfluenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Larisa V GubarevaInfluenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Timothy M UyekiInfluenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA.ORCID http://orcid.org/0000-0001-5338-8668
Taronna R MainesInfluenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA.ORCID http://orcid.org/0000-0002-4097-6724

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Neuraminidase inhibitors (NAIs) and cap-dependent endonuclease inhibitors (CENIs) represent two classes of antiviral drugs recommended for early treatment of patients with seasonal influenza A virus (IAV) infections. However, only limited human data, particularly on combination antiviral treatment, are available to inform optimal dosing regimens against novel IAVs, including highly pathogenic avian influenza A(H5N1) virus, associated with severe disease. Clade 2.3.4.4b A(H5N1) viruses have caused outbreaks in avian and mammalian species worldwide, highlighting the need to assess antiviral drug efficacy against these strains. We challenged ferrets with a D1.1 genotype A(H5N1) virus and treated infected animals with the NAI oseltamivir phosphate (OST) and the CENI baloxavir acid (BXA), alone or in combination, with treatment onset commencing pre- or post-symptom onset (24- or 48-hours post-inoculation (p.i.), respectively). When administered pre- or post-illness onset, BXA, but not OST, monotherapy provided significant reduction of clinical signs and significantly decreased infectious viral levels (in both respiratory and extrapulmonary specimens) compared with mock-treated animals. Combination OST/BXA treatment, when administered pre- or post-symptom onset, resulted in significant improvements in both metrics versus OST monotherapy. These data support continued investigation of antiviral treatment modalities that include both NAI and CENI for patients with mild and severe A(H5N1) disease.

Indexed as

DibenzothiepinsInfluenza A Virus, H5N1 SubtypeMorpholinesOseltamivirAnimalsAntiviral AgentsDrug Therapy, CombinationFerretsPyridonesTriazinesAntiviral AgentsbaloxavirDibenzothiepinsMorpholinesOseltamivirPyridonesTriazines

Identifiers

PMID41588212
PMCPMC12946176

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.