Maria Cheng

Read the latest stories and analysis from Maria Cheng.

This undated photo made available by the Antwerp Institute of Tropical Medicine in Antwerp, Belgium, shows the Ebola virus viewed through an electron microscope. The World Health Organization on Friday, Aug. 8, 2014 declared the Ebola outbreak in West Africa to be an international public health emergency that requires an extraordinary response to stop its spread. (AP Photo/Antwerp Institute of Tropical Medicine)

UN: Ebola outbreak a public health emergency

Maria Cheng · August 8, 2014 11:38 pm

Why isn’t there a treatment or vaccine for Ebola?

Maria Cheng · August 1, 2014 7:08 pm

FILE - This is a Thursday, Feb. 27, 2014 file photo of a newly-diagnosed HIV positive woman, who arrived at the hospital with symptoms of tuberculosis (TB), receives treatment at the Mildmay Uganda clinic in Kampala, Uganda . The number of people living with HIV worldwide has remained virtually unchanged in the past two years and AIDS-related deaths are at their lowest since peaking almost a decade ago, according to a report from the United Nations AIDS agency released Wednesday July 16, 2014. (AP Photo/Rebecca Vassie, File)

Number of people with HIV unchanged since 2012

Maria Cheng · July 16, 2014 10:43 am

Trial: dengue shot offers some protection

Maria Cheng · July 11, 2014 9:10 am

Headbanging caused brain bleed in Motorhead fan

Maria Cheng · July 4, 2014 2:10 pm

Seniors learn “parkour,” sport of daredevil youths

Maria Cheng · July 2, 2014 5:27 pm

FILE - In this undated photo made available by Britain's Channel 4 television of Oxford University genetics professor Bryan Sykes posing with a prepared DNA sample taken from hair from a Himalayan animal. DNA testing is taking a bite out of the Bigfoot legend. After scientists analyzed more than 30 hair samples reportedly left behind by Bigfoot and other related beasts like Yeti and almasty, they found all of them came from more mundane animals like bears, wolves, cows and raccoons. In 2012, researchers at Oxford University and the Lausanne Museum of Zoology issued an open call asking museums, scientists and Bigfoot aficionados to share any samples they thought were from the mythical ape-like creatures. (AP Photo/ Channel 4)

Bigfoot hair samples mostly from bears, wolves

Maria Cheng · July 2, 2014 9:06 am

Studies question UN strategies to save mothers

Maria Cheng · June 29, 2014 10:33 am

In this image made available from Oriental Institute of the University of Chicago, on Thursday June 19, 2014 shows a skeleton in a grave in northern Syria in 2010. In a skeleton more than 6,200 years old, scientists have found the earliest known evidence of infection with a parasitic worm that now afflicts more than 200 million people worldwide. Archaeologists discovered a parasite egg near the pelvis of a child skeleton in northern Syria and say it dates back to a time when ancient societies first used irrigation systems to grow crops. (AP Photo/Gil Stein, Oriental Institute of the University of Chicago)

Scientists find 6,200-year-old parasite egg

Maria Cheng · June 20, 2014 12:17 am

Mammograms may cut breast cancer deaths by 28%

Maria Cheng · June 18, 2014 12:22 am

Study: Red meat possibly linked to breast cancer

Maria Cheng · June 11, 2014 10:41 am

Study: King Richard III maligned as hunchback

Maria Cheng · May 29, 2014 11:08 pm