Mathilde Lejeune

Large-scale exposure of southern seabirds to avian cholera Pasteurella multocida: scavengers as sentinels at different spatial scales

The paper screens seabird species for antibodies against avian cholera bacteria to assess spatial distribution and identify potential sentinels for disease monitoring.

Highly persistent antibody levels but limited population immunity in gannets after HPAI outbreak

The study finds persistent antibody levels and limited population immunity in gannets after an HPAI outbreak, emphasizing the role of long-lasting immunity in population persistence.

Mass mortality of southern elephant seals during multi-species outbreak of HPAI H5N1 on sub-Antarctic Heard Island

The paper reports a multi-species outbreak of HPAI H5N1 on Heard Island, causing mass mortality in southern elephant seals and other seabirds, with drones used for monitoring.

Early-life adversity modulates growth trajectories and red blood cell mitochondrial metabolism in king penguin chicks

This study examines how early-life adversity affects growth and mitochondrial metabolism in king penguin chicks, finding higher mitochondrial metabolism in late-born chicks but no clear link to growth patterns.

Dispersal, adaptation and persistence of H5N1 in the sub-Antarctic and Antarctica

This study tracks the spread and evolution of H5N1 in the sub-Antarctic and Antarctica, revealing long-distance dispersal and mammalian-adaptive mutations.

Drivers of host-infectious agent community associations in seabirds from sub-Antarctic oceanic islands

This study identifies drivers of infectious agent communities in seabirds by analyzing factors like host species, island location, and transmission traits across multiple islands.

Vaccination against H5 HP influenza virus leads to persistent immune response in wild king penguins

This study vaccinates king penguin chicks with an mRNA vaccine against H5 HPAI and finds a persistent immune response without adverse effects.

Mass mortality events in the sub-Antarctic Indian Ocean caused by long-distance circumpolar spread of highly pathogenic avian influenza H5N1 clade 2.3.4.4b

This study reports the arrival of HPAI H5N1 clade 2.3.4.4b in sub-Antarctic Indian Ocean islands, causing mass mortality in seals and birds, and identifies independent introductions from South Georgia.