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 ...

Diseases, Conditions, Syndromes

Suspected second case of Ebola in Ivory Coast

The UN health agency said Tuesday that a second suspected case of infection by the deadly Ebola virus had been detected in Ivory Coast.

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