All Ashley St John articles
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NewsScientists link waning Japanese encephalitis immunity to higher dengue severity
Scientists have found that waning immunity to Japanese encephalitis virus (JEV) may increase the risk of more severe dengue disease in humans. The study highlights how fading vaccine protection from one virus can unintentionally affect the body’s response to another.
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NewsStudy reveals early immune protection in the womb
Researchers have discovered that fetuses can manage their own immune responses to combat diseases and infections like Zika.
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NewsImmune response to dengue can predict risk of severe reinfections
Researchers have found that natural killer T (NKT) cells influence whether the immune response generates protective antibodies that neutralise dengue virus or harmful ones that could exacerbate the disease in future infections.
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NewsPotential nasal COVID-19 vaccine candidate offers better and longer protection
Study shows that administering a COVID-19 vaccine as a nasal spray rather than a subcutaneous injection enhances the body’s long-term immune memory, thereby increasing the vaccine’s overall effectiveness.
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NewsMaternal dengue immunity worsens birth defects caused by Zika virus
A new study finds prior dengue antibodies substantially raise the risk of microcephaly and fetal defects with Zika infection.