Zika virus infects more than 2,100 pregnant Colombian women

Virus linked to birth defect which causes babies to have small heads and underdeveloped brains and rare, sometimes paralyzing illness

• Jan 30, 2016

Zika survivor: "All of my joints felt like lead weights"

Brazilian-American man tells CBS News about his harrowing experience with Zika virus; his doctors in New York "had never seen a case of Zika"

• Jan 29, 2016

Can genetically modified mosquitoes snuff out Zika?

As companies race to create vaccines, Brazil is already testing a different way to fight the disease, and Florida may follow

• Jan 29, 2016

NIH: Zika virus at "pandemic" level

World Health Organization warns the Zika virus is "spreading explosively" and could infect four million people by the end of the year

• Jan 28, 2016

Zika "spreading explosively," global health experts warn

World Health Organization predicts 3 to 4 million cases this year of virus linked to birth defects and neurological problems

• Jan 28, 2016

Rio mayor: No threat to Olympics from Zika virus

As global health experts warn the Zika virus is "spreading explosively," Rio's mayor says timing of Olympics reduces danger

• Jan 28, 2016

Country where Ebola outbreak began reaches milestone

Despite positive news in Guinea, "We definitely cannot let our guard down"

• Dec 29, 2015

More twins, fewer teen moms in latest birth stats

New report marks some significant changes in American birth patterns

• Dec 23, 2015

Cambodia deaths linked to barbequed dog carcass

Dog meat and rice wine sent to laboratory for testing after 10 Cambodians die, 100 fall ill

• Dec 11, 2015

Can you really be allergic to Wi-Fi?

Scientific studies have found no link to electromagnetic signals, but recent case revives questions

• Dec 7, 2015

Staggering toll from tainted food worldwide

The World Health Organization says children account for more than a quarter of food-related deaths

• Dec 3, 2015

WHO: Antibiotic resistance is a "global health crisis"

A new survey finds widespread misconceptions about antibiotic overuse and resistance

• Nov 16, 2015

Two-thirds of the world population has herpes

According to a new report, billions of people under the age of 50 are infected with the herpes simplex type 1 virus

• Oct 30, 2015

WHO: Processed meat can cause cancer; red meat probably can

Researchers classify processed meat in same category as cigarettes, and red meat as "probably carcinogenic to humans"

• Oct 26, 2015

Ebola virus can stick around up to 9 months in men

Semen samples reveal presence of virus even longer than previously believed

• Oct 15, 2015

New recommendations for HIV treatment worldwide

The World Health Organization has revised its guidelines on early treatment

• Sep 30, 2015

How bureaucracy, bungling hurt Ebola response

AP investigation: Expired supplies, missing gear and red tape undermined World Health Organization's response to crisis

• Sep 21, 2015

Millions dying around the world due to air pollution

Premature deaths caused by air pollution could double by 2050, in part from some surprising factors

• Sep 16, 2015

Ebola survivors suffer lingering health problems

Health officials see "emergency within an emergency" as survivors struggle with debilitating pain, complications

• Aug 24, 2015

World's first malaria vaccine wins approval

New vaccine falls far short of full protection, but could still help save lives

• Jul 24, 2015

One-third of the world's people lack proper toilets

Hundreds of millions of people suffer from poor sanitation, global report says

• Jul 1, 2015

Dengue fever outbreak strikes Yemen amid fighting

In the midst of ongoing violence between Shiite Houthi rebels and loyalists of Yemen's president, the disease has spread among thousands

• Jun 18, 2015