Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

The only recent book more disturbing than Jacobsen’s previous one, “Nuclear War: A Scenario,” is her new one, “Biological War ...

Here’s what we’ve learned – and how our understanding has evolved – since the earliest cases of the novel coronavirus were ...

Every time a virus invades a person, it collides with thousands of years of human history. A study led by researchers at the ...

Air pollution from cruise ships could be damaging the health of people living in port cities by increasing inflammation and susceptibility to viruses such as the common cold and COVID-19. New research ...

The release of Dr. Anthony Fauci's pandemic diaries has rekindled the debate over the origins of SARS-CoV-2. Here's how ...

As if you needed another health concern to worry about — beyond the “explosive diarrhea” stomach parasite causing a surge of sicknesses around the United States — it looks like the COVID-19 virus is ...

A gut bacterium called Bacteroides fragilis has been linked to colorectal cancer for years. The problem is that this same organism lives peacefully in the digestive tracts of the majority of people ...

At first glance, it looks like an ordinary grove of quaking aspens in Utah's Fishlake National Forest. If asked to name the world's largest living organism, most people would probably think of the ...

Thanks to a recent federal court decision, tens of millions of Americans may be able to receive a tax refund or abatement of penalties accrued during the first few years of the COVID-19 pandemic from ...