A new vaccine offers strong promise against H5N1 bird flu. The clade 2.3.4.4b virus has spread across North America. Bird flu threatens livestock, birds, and human health. New mutations raise serious pandemic concerns.

Researchers developed a nanoparticle vaccine using viral surface proteins. H5 and N1 proteins were displayed on immunogenic liposomes. These proteins help trigger a strong immune response in the body.

Mice received the vaccine and produced antibodies targeting both proteins. All vaccinated mice survived a deadly H5N1 infection. These results suggest the vaccine offers complete protection.

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Climate change is helping dangerous diseases spread across the Arctic. Scientists say rising temperatures are melting permafrost and damaging ecosystems. These changes open new paths for infections to move from animals to people.

An international research team published the findings in Science of the Total Environment. The study shows how warming is reshaping Arctic life. New roads, industries, and people now reach once-isolated areas. This raises the risk of infections like brucellosis, tularemia, and E. coli.

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Gepotidacin, a new antibiotic pill, works as well as standard treatments for gonorrhea. These results appeared in a large, recent study published in The Lancet. The new drug could offer a simple oral option for treating this common sexually transmitted infection.

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The CDC reduced the minimum age for RSV vaccination. Adults aged 50 to 59 with risk factors now qualify. The Advisory Committee on Immunization Practices, or ACIP, voted 14-0 in favor. One member voted to abstain.

The recommendation targets adults at high risk of severe RSV symptoms. Qualifying conditions include heart disease, diabetes, asthma, COPD, chronic bronchitis, kidney disease, weakened immunity, and neurological disorders. These health issues are common in people over 50.

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A deadly fungus called Candida auris is spreading in U.S. hospitals. New research shows a major jump in cases since 2019. Only five infections were reported in the United States that year. By 2023, the number of cases jumped sharply to 115.

The fungus kills one in three people who become infected. It targets the elderly and people already sick or hospitalized. Experts say the spread is a growing threat to public health.

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