A novel coronavirus is affecting countries in every habitable continent, with recent shocks to oil prices only the latest wrinkle in the unfolding outbreak.

Want some fresh takes for your Valentine’s Day coverage? Open your heart to the five studies we’ve summarized below. They look at:

New research in Science Advances breaks down the policy issues on which political conservatives and liberals think in zero-sum terms — a black-and-white view of the world where there are only winners and losers.

There’s a big problem in the multi-trillion-dollar bond market, according to a recent National Bureau of Economic Research working paper: A substantial portion of bond funds might be riskier bets than they seem.

This post has been updated with new research since it first ran in January 2019.

As we wind down the year, we’re counting down the most-read Journalist’s Resource posts of 2019 — articles and research roundups we published (or significantly updated and republished) in the past year.

A federal government database of doctors who provide medication-assisted treatment for opioid use disorder is rife with inaccurate information, making it difficult for people seeking help to schedule appointments, shows new research in the Journal of Psychiatric Practice.

On Jan. 2, the Trump administration announced a ban on most flavored e-cigarette cartridges, except for menthol and tobacco flavors. The ban is aimed at reducing the uptake of vaping among young people.

What better way to start the new year than by learning new things about how best to battle fake news and other forms of online misinformation? Below is a sampling of the research published in 2019 — seven journal articles that examine fake news from multiple angles, including what makes fact-checking most effective and the potential use of crowdsourcing to help detect false content on social media.