Michaeleen Doucleff

Michaeleen Doucleff is a reporter for NPR's Science Desk. She reports for the radio and the Web for NPR's global health and development blog, Goats and Soda. Doucleff focuses on disease outbreaks, drug development, and trends in global health.

In 2014, Doucleff was part of the team that earned a George Foster Peabody award for its coverage of the Ebola outbreak in West Africa. For the series, Doucleff reported on how the epidemic ravaged maternal health and how the virus spreads through the air. In 2015, Doucleff and Senior Producer Jane Greenhalgh reported on the extreme prejudices faced by young women in Nepal when they're menstruating. Their story was the second most popular one on the NPR website in 2015 and contributed to the NPR series on 15-year-old girls around the world, which won two Gracie Awards.

As a science journalist, Doucleff has reported on a broad range of topics, from vaccination fears and the microbiome to beer biophysics and dog psychology.

Before coming to NPR in 2012, Doucleff was an editor at the journal Cell, where she wrote about the science behind pop culture. Doucleff has a doctorate in chemistry from the University of Berkeley, California, and a master's degree in viticulture and enology from the University of California, Davis.

Dengue — aka "breakbone fever" — has been a tough nut to crack when it comes to making a vaccine.

The problem is that the mosquito-borne virus comes in four flavors, or strains. Vaccines that work on one strain haven't worked well on the others.

Now scientists at Imperial College London have discovered a potential way around this problem.

Immunologist Gavin Screaton and his colleagues have found molecules — specifically antibodies — in human blood that stop all forms of dengue.

Speed. That's key to ending the Ebola epidemic, says the director of the U.S. Centers for Disease Control and Prevention.

Dr. Thomas Frieden is visiting West Africa this week to figure out how to reduce the time it takes to find new Ebola cases and isolate them.

Otherwise, Ebola could become a permanent disease in West Africa.

Viruses are masters at mutating.

So the big concern with deadly viruses, like Ebola and hepatitis C, is that they will evolve into more dangerous forms over time.

It looks like just the opposite is happening with HIV — although it's happening slowly.

"HIV can generate any mutation in the book, on any day," says virologist Philip Goulder at the University of Oxford.

Here's an Ebola puzzle for you: If the virus isn't airborne, why do doctors and nurses need to wear full protective suits, with face masks, while treating patients?

After we dug through studies and talked to scientists, the answer slowly emerged.

Ebola does spread through the air. But not through the airborne route.

Oh, goodness! No wonder there's been such a kerfuffle about how the virus is transmitted.

Scientists — and anyone who lives with a canine — know that dogs pay close attention to the emotion in our voices. They listen for whether our tone is friendly or mean, how the pitch goes up or down and even the rhythms in our speech.

But what about the meaning of the words we say?

Sure, a few studies have reported on supersmart dogs that know hundreds of words. Chaser, a border collie in South Carolina, even learned 1,022 nouns and commands to go with them.