Flu cases are surging in Washington state, much sooner than when health officials usually expect the illness to peak in winter.

Clade 2.3.4.4b H5NX influenza viruses have spread widely in birds since 2020. In addition to causing disease in birds, these viruses have infected a variety of mammals, including humans. Clade 2.3.4.4...

Karolinska Institutet continues to grow a global community of excellence. In summer 2026, KI is inviting applications for 21 Assistant Professor positions in medicine and health. We are once again loo...

H5N1 avian influenza viruses have pandemic potential, yet antibody responses to their neuraminidase aren’t well studied. Here, the authors demonstrate that childhood exposure to H1N1 viruses enhances ...

An mRNA-based flu shot could make a huge difference in flu prevention, allowing scientists to pick a better strain match.

Scientists are worried that hantaviruses haven’t been as well studied as they ought to be, but not that the MV Hondius cruise ship is ground zero for the next pandemic.

The cruise operator said in a statement that the ship may sail from Cape Verde to Las Palmas or Tenerife in the Canary Islands and dock there.

Li et al. isolated H1/H3 cross-reactive antibodies targeting a conserved epitope in the HA head. These antibodies were mostly found in people born in the 1990s and can be elicited in ferrets by sequen...

Researchers still aren’t sure how H5N1 influenza spreads between cows and from farm to farm

A new H3N2 variant (named subclade K) possesses several key hemagglutinin substitutions and is circulating widely during the 2025–2026 influenza season. We sought to determine whether the 2025–2026...

Stanley Plotkin, the 93-year-old "godfather of vaccines," is watching his field’s achievements slip away.

An H3N2 variant, named subclade K, continues to circulate widely during the 2025-2026 influenza season. This virus possesses a hemagglutinin (HA) protein that has eleven substitutions relative to the ...

Four-year-old Ellie Rudd – who loved mud and getting dressed up and having dance parties with her brother and sisters – died January 6, after the flu and a co-infection with an adenovirus turned into ...

Flu is making people miserable from coast to coast, thanks in large part to a new strain called subclade K.

While the new findings are encouraging, "vaccines won’t do any good if people don’t get them," one expert said.

A new H3N2 variant (named subclade K) possesses several key hemagglutinin substitutions and is circulating widely during the 2025-2026 influenza season. In this report, we completed experiments to det...

Researchers are striving to understand the impact a phenomenon known as original antigenic sin has on immunity to the virus.

This study dissects the individual contributions of the different components of mRNA vaccines to immune responses. Nucleoside-modified mRNA promotes the production of type I interferons that act on de...

Seasonal influenza activity is low.

The panzootic of highly pathogenic H5N1 since 2021 was driven by around nine introductions into the Atlantic and Pacific flyways, followed by rapid dissemination through wild migratory birds, primaril...

The Centre for Health Protection (CHP) of the Department of Health (DH) today (October 20) announced a case of severe paediatric influenza A infection. The CHP urged schools and parents...

With the decision, Penn becomes the third university to decline the offer.

Abstract. The 2022 panzootic of highly pathogenic avian influenza (HPAI) A(H5) viruses has led to unprecedented transmission to multiple mammalian species.

Influenza virus cross-subtype antibodies targeting the hemagglutinin (HA) head are rare. Here, we found that a large proportion of monoclonal antibodies (mAbs) isolated from individuals immunized with...

The hemagglutinin of human influenza virus evolves rapidly to erode neutralizing antibody immunity. Twice per year, new vaccine strains are selected with the goal of providing maximum protection again...

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H5N1 highly pathogenic avian influenza viruses have spread globally and pose a risk for a human pandemic. Prior studies suggest that early life exposures to group 1 influenza viruses (H1N1 and H2N2) p...

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The National Advisory Committee on Immunization (NACI) makes recommendations for the use of vaccines currently or newly approved for use in humans in Canada, including the identification of groups at ...