Diseases, Conditions, Syndromes

Flu vaccine may not protect against main flu strain: study

(HealthDay)—This season's flu vaccine may do little to prevent infection with the main circulating virus strain because the strain has changed since the vaccine was developed, a new study suggests.

Immunology

Nasal vaccine may aid fight against new viral variants

The emergence of COVID-19 variants such as delta and omicron have sent scientists scrambling to determine whether existing vaccinations and boosters are still effective against new strains of SARS-Cov-2.

Immunology

What happens to our immune systems when we get a booster?

Questions about COVID-19 vaccine boosters—like who is eligible and how to choose one—have dominated scientific discussions, news headlines, and dinner-table conversations recently, but the practice of giving our immune ...

Diseases, Conditions, Syndromes

How will Delta evolve? Here's what the theory tells us

The COVID-19 pandemic is a dramatic demonstration of evolution in action. Evolutionary theory explains much of what has already happened, predicts what will happen in the future and suggests which management strategies are ...

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