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Science Ticker

New cases of Ebola emerge in Liberia

Ebola virus particles (green)

Ebola virus particles (green) bud from an infected cell (blue). The virus has infected more people in Liberia.

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Ebola is back in Liberia more than a month after the country thought it was rid of the virus.

A 17-year-old man died on June 29 of a fever illness that was being treated as malaria. As part of Liberia’s Ebola surveillance, swabs from the young man were collected by a safe burial team. Tests revealed that the young man died of Ebola, the World Health Organization (WHO) announced July 3.

Two of the nearly 200 people who came in contact with the young man have also developed Ebola symptoms and have been found to carry the virus. Other contacts are being monitored.

Liberia was declared Ebola-free on May 9 after 42 days without a new case. It is not known how the young man became infected.

To date 27,573 people have contracted Ebola and 11,246 have died. Most of the cases have occurred in Sierra Leone, Liberia and Guinea.

A report issued July 7 by a panel that analyzed the global response to the Ebola outbreak says the WHO and its member states were ill-equipped to handle the epidemic and must make changes to safeguard public health.

Planetary Science

Pluto is only a ‘day’ away

By Christopher Crockett 12:26pm, July 7, 2015
Just one Pluto-day to go until New Horizons tears past the dwarf planet and its moons.
Planetary Science

New Horizons recovers from overload, is on track for Pluto flyby

By Christopher Crockett 5:49pm, July 6, 2015
New Horizons transmits the best pictures of Pluto to date shortly before the spacecraft went quiet over the weekend.
Animals,, Biophysics,, Evolution

Why seahorses have square tails

By Susan Milius 2:34pm, July 2, 2015
3-D printed seahorse tails reveal possible benefits of square cross-sections for armor and gripping.
Planetary Science

Pluto may have spots the size of Missouri

By Christopher Crockett 12:10pm, July 2, 2015
Dark spots emerge on the surface of Pluto in recent images from the New Horizons spacecraft.
Molecular Evolution,, Animals

Genetic tweak hints at why mammoths loved the cold

By Tina Hesman Saey 12:00pm, July 2, 2015
An altered temperature sensor helped mammoths adapt to the cold.
Animals,, Evolution

Flatworm can self-fertilize by stabbing itself in the head

By Susan Milius 3:11pm, July 1, 2015
Hermaphroditic flatworms with hypodermic-style mating get sharp with themselves.

Clot-snatching stroke treatment gets the green light

By Ashley Yeager 4:42pm, June 30, 2015
Snatching blood clots from the brain with a wire mesh stent is a new stroke treatment that is now supported in the United States.

Old fruit flies’ swagger restored with brain chemical dopamine

By Laura Sanders 2:34pm, June 30, 2015
Replenishing the chemical communicator dopamine to a handful of nerve cells makes old flies feel frisky again.
Earth,, Technology

Leap second helps us with the reality of time

By Christopher Crockett 6:00am, June 30, 2015
A leap second will be inserted at the end of the day on June 30.

Pain may come in his and hers

By Laura Sanders 11:59am, June 29, 2015
Males and females rely on different kinds of cells to carry pain signals, a mouse study suggests.
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